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Speaker 1: Brought to you by the reinvented two thousand twelve camera.

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Speaker 1: It's ready. Are you get in touch with technology with

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Speaker 1: tech Stuff from how stuff works dot com. Hello there, everyone,

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Speaker 1: and welcome to tech stuff. My name is Chris Pouette

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Speaker 1: and I'm the tech editor here at how stuff works

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Speaker 1: dot com. Sitting across from me, as he always does,

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Speaker 1: is senior writer Jonathan Strickland. Hey there, So we uh

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Speaker 1: where we're going to talk about something that you might

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Speaker 1: see and not understand, at least in my case, because

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Speaker 1: you know, because you see it and you don't understand

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Speaker 1: it exactly. This comes This comes to us courtesy of

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Speaker 1: a little listener mail and here we go. Hi. My

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Speaker 1: name is James. I love how stuff Works. I was

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Speaker 1: reading an article on h d M I and kind

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Speaker 1: of learned how progressive scan works. But better to hear

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Speaker 1: it from the experts. What can you tell me in

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Speaker 1: podcast form? Well, James, um, first, as they have the

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Speaker 1: whole experts. I know, maybe we're supposed to a forward

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Speaker 1: this onto someone, but we'll we'll give it a shot.

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Speaker 1: So progressive scan, we're talking about television's here, or monitors,

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Speaker 1: computer monitors as well. Can I progressive scan most do. Um,

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Speaker 1: and Uh, it's it's a technology specifically that deals with

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Speaker 1: how your television generates images. Now, your old analog TVs

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Speaker 1: and the the big old bulky machines that we used

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Speaker 1: to watch television on us to some of us still

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Speaker 1: own analog TV. Yeah, a lot of our listeners have

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Speaker 1: never watched television on one of those. Can you can

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Speaker 1: you think? Can you wrap your head around that? Okay?

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Speaker 1: So okay, the old people in the room, Uh, we

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Speaker 1: used to and sometimes still do watch television on these

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Speaker 1: old analog television sets. And these TV sets use a

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Speaker 1: technology called interlacing display images. So every single time you're

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Speaker 1: looking at a television that's on and showing something like

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Speaker 1: some sort of television program, Um, you're actually looking at

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Speaker 1: thousands and thousands and thousands of tiny little dots of

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Speaker 1: light that we call pixels all right now. And they

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Speaker 1: come in rows, yes, rows, and columns in fact, uh,

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Speaker 1: and so we we usually look at them. Uh. You

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Speaker 1: can either look at them as horizontal rows or vertical columns.

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Speaker 1: The idea here is that the television sort of paints

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Speaker 1: this picture with light, all right. The old analog TVs

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Speaker 1: used an electron gun to paint these pictures and we'll

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Speaker 1: probably talk more about the electron gun, how it did this,

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Speaker 1: and kind of the evolution of TVs and another future podcast. Yeah,

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Speaker 1: we've got a lot of requests for that, so that

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Speaker 1: that's in the that's in the works. We haven't we

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Speaker 1: haven't tackled that one yet because it's a it's a

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Speaker 1: little bit heavier of a topic than this, and any rate,

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Speaker 1: it paints the pictures line by line, all right, and

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Speaker 1: with the old interlacing technology, it wouldn't paint the entire picture,

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Speaker 1: it would paint every other line, uh per per scan

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Speaker 1: if you want to call it that, all right. Basically

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Speaker 1: the even lines and the odd lines, and it alternates

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Speaker 1: between the two and each set displays for one of

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Speaker 1: a second, So thirty times a second you get all

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Speaker 1: the odd lines, and thirty times a second you get

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Speaker 1: all the even lines, and they're they're alternating back and forth.

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Speaker 1: That gives you your sixty hurts refresh rate. Okay, but

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Speaker 1: you're only getting thirty per set of lines. So that's

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Speaker 1: called interlacing. It interlaces the odd lines with the even lines.

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Speaker 1: Progressive scan is different, and progressive scan you get all

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Speaker 1: the lines shown on each on each blasts. So instead

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Speaker 1: of getting you know, half of them every thirty and

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Speaker 1: the other half sorry, thirty every second for half a

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Speaker 1: thirty every second for the other half, you get sixty

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Speaker 1: of all of them per second with a sixty hurts

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Speaker 1: refresh rate. Yes, because let's talk about sixty times per second.

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Speaker 1: That's what the hurts means in this case. Um, So

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Speaker 1: it's painting every line on the picture. Now, what does

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Speaker 1: this mean to you as a television viewer? Well, did

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Speaker 1: you want to take a stab? Well, I was going

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Speaker 1: to say that damage appears more stable, yes, and it

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Speaker 1: doesn't display as many artifacts, which is a very important

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Speaker 1: digital bits that don't seem to you know, Yeah, they

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Speaker 1: look really jagged, these little jagged exactly, there's these. If

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Speaker 1: you've ever watched, um, say, a really good DVD on

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Speaker 1: a on an old interlace television set, um, you might

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Speaker 1: notice that there are these occasionally these little jagged uh

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Speaker 1: images that show up as the as the show or

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Speaker 1: the DVD plays. And it's once you notice them, it's

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Speaker 1: hard not to notice them. From that point on, you

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Speaker 1: start noticing them in everything, and um, it's very irritating.

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Speaker 1: Progressive scan eliminates a lot of that because it does

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Speaker 1: smooth out the picture. So this is why when you

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Speaker 1: were first looking at h D t vs back when

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Speaker 1: they were first becoming popular. Uh, you know, you had

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Speaker 1: a couple of different choices. There was the seven twenty

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Speaker 1: and the ten eight, which that refers to how many

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Speaker 1: lines of pixels you have? Right, yes, so for for

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Speaker 1: top to bottom there are seven lines or right, so,

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Speaker 1: and that that changes the resolutions the top to bottom,

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Speaker 1: like I think it's left right that would make sense.

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Speaker 1: I'm sorry, because left right, if you have a ten

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Speaker 1: a D line TV, that's the sixteen by nine resolution

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Speaker 1: versus the three. Yeah, OK, so I apologize, that's all right. No,

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Speaker 1: I get confused all the time about this guy's I

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Speaker 1: mean I write about them all the time, and I

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Speaker 1: still have to look it up because there's so many

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Speaker 1: numbers that are involved here. So, but seven twenty, if

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Speaker 1: you you could get like a seven twenty television, that

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Speaker 1: would mean that it was a progressive scan television that

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Speaker 1: had the seven or twenty lines of resolution or ten

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Speaker 1: eighty I resolution, which mean I had a thousand eighty

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Speaker 1: lines of resolution and that was interlaced by the way,

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Speaker 1: the seven ten eighty thing. That's not really how many

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Speaker 1: lines of resolution you have? How many lines of pixels?

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Speaker 1: But we're gonna stick with that just because that's the

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Speaker 1: what the industry standard is called. Yeah, um, so don't

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Speaker 1: write in and tell me you know, actually it's not

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Speaker 1: really one thousand eighty because I happen to know that. Um,

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Speaker 1: but we're yeah, well, don't pause the podcast. People listen

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Speaker 1: to it all the way through and then tell us

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Speaker 1: how stupid we are. Um, actually we're great. So anyway,

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Speaker 1: the you might think, all right, well, if this television

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Speaker 1: has more lines of pixels, it must be better, be

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Speaker 1: because more is better, right, well, not necessarily. Yes, you

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Speaker 1: might have more pixels per on your screen. You might,

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Speaker 1: and which more means you're gonna have smaller pixels usually

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Speaker 1: means you have a sharper image, right, a sharper picture.

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Speaker 1: That's why the definition really is all about, not the

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Speaker 1: sharper image. But you're smirking at me. So, so usually

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Speaker 1: more pixels does mean better. But when it comes to

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Speaker 1: interlace versus progressive then you have a different argument. You're saying, well,

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Speaker 1: progressive scan gives you a smoother image, especially when stuff

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Speaker 1: is moving around. Um, and interlace can give you these

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Speaker 1: artifacts so in that case, it might be better to

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Speaker 1: get the seven twenty rather than the ten eight, especially

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Speaker 1: if you're talking about smaller TVs, because these higher resolutions

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Speaker 1: aren't really that noticeable on televisions that are around I

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Speaker 1: don't know, thirty six inches or smaller. Three six inches

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Speaker 1: is a big TV, and it really is kind of big.

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Speaker 1: But when you're starting it's only when you start getting

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Speaker 1: up into the fifth and sixty inch televisions that you're

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Speaker 1: really start to need to worry about a ten eight resolution.

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Speaker 1: And if it were ten A d I with the interlace,

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Speaker 1: it would not necessarily be a better experience than if

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Speaker 1: you were to get the same size. And now eventually

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Speaker 1: manufacturers started to come out with ten A DP models.

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Speaker 1: So these are the progressive scan uh sets that have

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Speaker 1: one thousand eighty lines of resolution, and uh, those are

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Speaker 1: really nice. They look really sharp. Um, again, unless you

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Speaker 1: have an enormous television, it may not really make a

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Speaker 1: huge difference how many lines of resolution are in there,

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Speaker 1: but the the technology behind it matters a lot. Yes. Now,

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Speaker 1: another thing to keep in mind is the refresh rate

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Speaker 1: on your television. Now, this is this is different from

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Speaker 1: whether it's progressive or interlaced. Your refresh rate is how

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Speaker 1: many times your television is generating that image per second.

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Speaker 1: And as we mentioned before, we were we started off

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Speaker 1: talking about sixty hurts, where it was either going to

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Speaker 1: be thirty times per second per set of lines with

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Speaker 1: interlaced order sixty times per second for the entire picture

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Speaker 1: with progressive um. But you now can find televisions with

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Speaker 1: much higher refresh rates. One hurts is pretty much common

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Speaker 1: now And if you go into an electronics store, yes,

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Speaker 1: so that means it's regenerating that image a hundred twenty

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Speaker 1: times per second. Uh, you can even find higher as

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Speaker 1: refresh rates. Two hundred forty hurts is not unusual. In fact,

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Speaker 1: someone in the office just recently purchased a two forty

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Speaker 1: hurts television. Was not It was not I, and obviously

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Speaker 1: wasn't me. Now it was someone else. I won't mention

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Speaker 1: names because I didn't ask if I could, But someone

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Speaker 1: else in the office for Christmas received a or went

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Speaker 1: out and purchased actually a two hurts refresh rate television.

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Speaker 1: Now that means that the image refreshes two hundred forty

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Speaker 1: times per a second. Now, refresh rate helps smooth out

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Speaker 1: images that are in that are moving very quickly. Yes.

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Speaker 1: When I say moving very quickly, I mean that objects

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Speaker 1: on the screen appeared to be moving. I mean, of course,

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Speaker 1: it's all an illusion anyway, right, it's all the nation,

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Speaker 1: But in particular, this is very important for things like sports.

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Speaker 1: You know, sporting events, you've got people moving around really fast,

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Speaker 1: You've got a lot of action going on. Um and

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Speaker 1: with the incredible detail that you get with high definition,

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Speaker 1: it can create a lot of artifacts, a lot of blurring.

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Speaker 1: So you want two things. You want a television that

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Speaker 1: can show a very sharp image, and you want television

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Speaker 1: that can show very smooth motion. And that's where the

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Speaker 1: refresh rate comes in. So that means that the three

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Speaker 1: things you really need to concentrate on when you're shopping

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Speaker 1: for televisions. For an HDTV are the lines of resolution.

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Speaker 1: Depending on the size of the TV. If it's a

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Speaker 1: really really big TV, you want the ten a D.

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Speaker 1: The method of of how it's displaying the image, whether

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Speaker 1: it's interlace or progressive. Progressive is better than interlace. Uh,

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Speaker 1: there's no two ways around that. And then the refresh

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Speaker 1: rate and refresh rate is also very important for three

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Speaker 1: D technology because three D we're going back to showing

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Speaker 1: two different images alternating between the two very very quickly. UM,

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Speaker 1: and that requires a very fast refresh rate so that

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Speaker 1: you can keep that that transition very smooth. So if

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Speaker 1: you have a display that has a very high refresh rate,

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Speaker 1: then it is better. It's going to be better than

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Speaker 1: showing three D images. And of course here I'm talking

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Speaker 1: mainly about UM ones that use polarized lenses. Uh, you

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Speaker 1: have to use glasses that have a polarized lens as

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Speaker 1: opposed to the old red and blue sets, because any

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Speaker 1: TV can show the redden blue. I mean, that's that's

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Speaker 1: a little different. You know, you don't have to have

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Speaker 1: a special HD TV to do that, but if you

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Speaker 1: want to do the polarization, then you're gonna need one

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Speaker 1: that has a really good refresh rate. And we actually

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Speaker 1: talked about the different kinds of of three D goggles

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Speaker 1: or glasses, I should say, and uh, like a year ago, Yeah,

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Speaker 1: like a year ago. That was almost a year nine nine, Okay,

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Speaker 1: And I know this because I answered a listener mail

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Speaker 1: today about three D. Do you want to talk about

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Speaker 1: the the component video cable because I mean, here again,

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Speaker 1: this is something we've talked about in previous podcast. But uh,

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Speaker 1: you know, because of the progressive scan, the the amount

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Speaker 1: of information the cables are actually handled a little differently

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Speaker 1: because you don't have the typical you know, single video cable,

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Speaker 1: the yellow and the red white yellow. Yeah, that's that

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Speaker 1: is an important distinction progressive scan. Uh, the higher quality

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Speaker 1: of device you have eating video into your television, the

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Speaker 1: better the cables need to be. In the sense that

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Speaker 1: the of types of cables not necessarily better within a type.

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Speaker 1: We had a discussion in another podcast about whether or

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Speaker 1: not expensive cables are worth it. In general, a decent

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Speaker 1: cable is going to perform just as well as a

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Speaker 1: very high end cable, at least for most people. I

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Speaker 1: guess arguably, if you had amazingly finely tuned human senses

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Speaker 1: that go beyond my own understanding, you might be able

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Speaker 1: to detect the difference between high end and normal. It

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Speaker 1: depends on how long the cable is and a couple,

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Speaker 1: but in general, if you if the if the cable

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Speaker 1: is really well made in the sense that it's really durable,

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Speaker 1: then that obviously makes a difference too. I mean, you

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Speaker 1: might have two cables that start out working really well

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Speaker 1: and essentially are indistinguishable between the two, and then a

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Speaker 1: year later, one is still performing at that level and

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Speaker 1: the other is slowly kind of fallen apart because it's

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Speaker 1: just a you know, not not as well made. But

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Speaker 1: you don't tend to see like usually you're not going

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Speaker 1: to see a jump in quality based upon the cable.

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Speaker 1: But getting back to component, a component versus a composite cable.

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Speaker 1: Component cable breaks out the video stream into three separate streams.

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Speaker 1: So each one of those cables is carrying essentially one

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Speaker 1: third of the information necessary to generate the image on

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Speaker 1: your television, and it provides an incredibly sharp picture if

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Speaker 1: you have the right equipment feeding the image into the TV. Yeah,

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Speaker 1: it actually splits out the light and the color yes um,

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Speaker 1: into the three different cables. Yeah, the cables themselves are

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Speaker 1: colored red, green, and blue. So some people believe that

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Speaker 1: that means that all the red information is carried on one,

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Speaker 1: the green on another, and the blue on the third.

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Speaker 1: It's not the case. Yeah, it's a color. It's just Yeah,

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Speaker 1: it's just so that you plug the right cable into

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Speaker 1: the right socket. It's all that that. That's all that

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Speaker 1: really indicates. It's not an indication of what color. It

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Speaker 1: tends to carry now the old, the old composite ones

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Speaker 1: that like you said, it's the one yellow, it's the

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Speaker 1: entire video feed, which is not going to be that

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Speaker 1: that sort of high definition experience you want. You can

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Speaker 1: also use h d M I, which will give you

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Speaker 1: the high definition experience. I prefer the component video over

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Speaker 1: the h d M I mainly because component video does

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Speaker 1: not have UM DRM. Yes dr M associated with it.

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Speaker 1: Digital rights management. Yes, h d M I does have

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Speaker 1: digital rights management associated with it, which means that you

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Speaker 1: may or may not be able to do things like

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Speaker 1: make a legal copy of something for your own benefit

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Speaker 1: because it's using HDMI rather than component But that also

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Speaker 1: does suggest that there there's been talk that movie studios

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Speaker 1: and manufacturers may stop supporting component video um entirely. They'll

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Speaker 1: just stop creating devices that have component video outputs, forcing

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Speaker 1: you into h d M I, which would mean, you know,

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Speaker 1: that's the convenient way of getting around that whole d

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Speaker 1: D r M loop. So I do not look forward

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Speaker 1: to that day because eventually any electronics device that you

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Speaker 1: purchase you will have to replace sometime. I mean, it's

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Speaker 1: just not gonna work forever. Um. You know, either it

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Speaker 1: just wears out, or the cat throws up on it,

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Speaker 1: or the kid throws up on the cat and then

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Speaker 1: the cat rubs up against it. It's something there's a

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Speaker 1: lot of vomit involved. That's really pleasant. Thank you so

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Speaker 1: much for that. Yeah, lunch is right after the podcast, folks.

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Speaker 1: Um not anyway, So for Matt Frederick, Matt Frederick is

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Speaker 1: our guest producer today, Ladies and gentlemen, and I hear

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Speaker 1: him whimpering halfway between laughter and halfway between little sounds

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Speaker 1: being disgusted. Yes, it's great. That's how we know the

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Speaker 1: episode is a success when we when we discussed the

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Speaker 1: producer um, So yeah, that's the that's the whole component

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Speaker 1: versus composite video chord Um. Is there anything else you

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Speaker 1: wanted to cover about progressive scanning? We pretty much covered

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Speaker 1: the base six and and you know there's of course

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Speaker 1: there's a lot behind the scenes if you're talking about

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Speaker 1: technology about how does this actually work? But just for

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Speaker 1: the regular consumer, the important thing to remember is that

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Speaker 1: little lower case P that is going to be the

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Speaker 1: indication that you're going to get the smoothest, sharpest picture.

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Speaker 1: The P stands for quality. Yes, just look in a

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Speaker 1: mirror and then it's a cue. Um yeah, because the

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Speaker 1: the eye. Yeah, this is the confusing thing about technology

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Speaker 1: is when you see a number and it's a bigger

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Speaker 1: number than another number, you immediately think, oh, this one

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Speaker 1: has to be better. This is one of those cases

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Speaker 1: where that's not necessarily true. Well, it's easy to market

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Speaker 1: because it's easy for people to understand. That's kind of

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Speaker 1: going back to the whole megapixel thing with cameras. Yeah,

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Speaker 1: mega hurts that, yes, that's getting of course now it's

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Speaker 1: giga hurts, but yes, yes, go out and get yourself

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Speaker 1: a progressive scan DVD or HD or well blue ray player.

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Speaker 1: That's gonna say, h D DVD, but that's just silly.

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Speaker 1: Don't go out and get one of those people that

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Speaker 1: that format has been dead for two years now. Um

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Speaker 1: go get a blue ray player again, an HDTV player,

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Speaker 1: get a get a nice component video cord, hook them

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Speaker 1: all up, enjoy that high refresh rate, watch that that

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Speaker 1: high definition movie. Let your jaw hit the floor. Remember,

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Speaker 1: you know, in in two thousand ten this year and

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Speaker 1: we're gonna see some three D content start to come

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Speaker 1: out on things like the Discovery Channel and ESPN. So

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Speaker 1: you're still want one of those fast televisions, you can

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Speaker 1: watch that and then just just because you have a

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Speaker 1: fast television doesn't necessarily mean it's three D ready either.

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Speaker 1: But we're gonna start seeing those come out hit the

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Speaker 1: market this year too, so they're becoming more affordable though.

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Speaker 1: That's one thing I noticed over the holiday season, you know,

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Speaker 1: with all the you know, deluge of ads. Yeah, Chris

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Speaker 1: pointed out earlier that a lot of the kind of

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Speaker 1: the value um models of televisions are starting to come

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Speaker 1: out supporting these features. You know, before it was always

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Speaker 1: the leading edge companies like Sony and Panasonic. These are

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Speaker 1: the ones that tend to produce the high end version

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Speaker 1: of televisions, and now we're starting to see the next

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Speaker 1: tier kind of produce their own h D t vs

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Speaker 1: with a three D capability and other cool goodies. All right, Well,

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Speaker 1: I guess that wraps up our discussion on progressive scan

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Speaker 1: uh and it leads us to a little more listener mail.

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Speaker 1: This listener mail comes from Gabriel, who says, hey, guys,

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Speaker 1: I'm from Brazil and everyone loves your podcast over here. Wow.

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Speaker 1: I wish I knew Portuguese for thank you. I'm quite

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Speaker 1: curious about that in Vidio Home three D monitor. How

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Speaker 1: does it work? Is it worth to worth it to

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Speaker 1: buy one now? Or should I wait for the technology

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Speaker 1: to develop a little more. Thanks guys, and keep it

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Speaker 1: up well, Gabriel. I actually looked into this a little

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Speaker 1: bit because I wasn't sure what you were referring to.

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Speaker 1: In Video doesn't really make monitors. Now. They do make

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Speaker 1: a software called the Nvidia Home Monitor, but that's meant

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Speaker 1: to monitor your your PC. It's designed to keep tabs

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Speaker 1: on what your computer is doing, how it's performing. Really like,

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Speaker 1: is your CPU performing at peak performance? Do you need

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Speaker 1: more memory? Do you you know? Do you need more storage?

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Speaker 1: That kind of thing, And it doesn't in a three

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Speaker 1: D environment because in Video has been making graphics cards

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Speaker 1: and glasses that work, uh in you know, in a

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Speaker 1: three D set up on your computer. Now, if you

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Speaker 1: want to run three D software on your computer, what

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Speaker 1: you're gonna need is you're gonna need a computer that

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Speaker 1: runs at a pretty fast clip. It's gonna have to

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Speaker 1: have a good graphics card like in this case we're

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Speaker 1: talking about. In Nvidia makes several cards that are specifically

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Speaker 1: three D capable. You're gonna need um and a pair

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Speaker 1: of three D glasses. Now, and in Video's case, these

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Speaker 1: are active glasses. They're not polarized. They actually have little

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Speaker 1: electronic shutters in them that open and close. Self asked

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Speaker 1: that you can't even see it. You can. You don't

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Speaker 1: perceive that they're opening and shutting, but they are at

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Speaker 1: a really fast rate. The monitor is actually displaying two

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Speaker 1: different sets of images timed exactly with the way your

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Speaker 1: glasses are shuttering on and off, you know, each lens alternating.

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Speaker 1: So that's what creates the illusion of a three D image. Um,

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Speaker 1: and the two are SYNCD up together. Right. So you've

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Speaker 1: got the glasses, you've got the the computer running the

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Speaker 1: with the graphics card, and you're gonna need a special monitor.

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Speaker 1: And in Video actually lists the different kinds of monitors

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Speaker 1: that are compatible with its system because they all have

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Speaker 1: to have a specific kind of refresh rate and ord

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Speaker 1: of it to work with the Nvidia graphics card. So

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Speaker 1: when you get those three things together, and then of

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Speaker 1: course some software that supports three D, uh, you can

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Speaker 1: you can play games in three D. There's some software

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Speaker 1: like the Nvidio Home Monitor, which, like I said it,

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Speaker 1: all it does is really show you what your computer

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Speaker 1: is doing, like how it's performing, UM, then you can

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Speaker 1: use that kind of stuff. Having used the Nvidia glasses,

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Speaker 1: I actually got a chance to test drive them at

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Speaker 1: the Consumer Electronics Show back in two thousand nine, I

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Speaker 1: can tell you I was really impressed with them. They

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Speaker 1: performed really well. I played Left for Dead on UM

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Speaker 1: in three D, and I was really impressed with how

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Speaker 1: it performed. In fact, so much so that it is

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Speaker 1: hard for me to play Left for Dead without it

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Speaker 1: being in three D now because it's just not nearly

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Speaker 1: as much fun. So I'd say that the technology is

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Speaker 1: actually pretty well developed already. I don't know. I mean,

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Speaker 1: I'm sure there will always be improvements, right, I mean,

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Speaker 1: you could always wait and wait and see if something

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Speaker 1: better comes out, but that's always going to be the case.

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Speaker 1: You might want to wait a little bit longer because

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Speaker 1: by the time this publishes, the Consumer Electronics Show for

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Speaker 1: two thousand and ten will have been over, but there

395
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Speaker 1: will be new three D monitors and three D video

396
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Speaker 1: cards coming out, so you may just want to keep

397
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Speaker 1: an eye out and see what the best thing is

398
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Speaker 1: within your own price range. UM. I can tell you

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Speaker 1: that it was a great experience when I played it,

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Speaker 1: and more and more video game UH manufacturers, more and

401
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Speaker 1: more UH content creators are going to support three D,

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Speaker 1: So at least in the short run, it'll be it

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Speaker 1: is going to be the thing. Whether it lasts, I

404
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Speaker 1: don't know. It may just be a fad, but I

405
00:23:18,920 --> 00:23:21,320
Speaker 1: can tell you it's pretty darn cool. But yes, on

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Speaker 1: the on the day we're recording this, we found out that,

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Speaker 1: uh that several people are coming out with full time

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Speaker 1: three D channels. So I'm sure that just a few

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Speaker 1: days ago we would have said, well, you know, with

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Speaker 1: very little content out there, it's more likely to remain

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Speaker 1: a fad, but you know, that may help push it

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Speaker 1: in the other direction entirely. And one of those two

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Speaker 1: content providers is ESPN and I the two the two

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Speaker 1: markets I think that are going to really propel three

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Speaker 1: D into the common living space will be sports and

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Speaker 1: video games. Those are the two markets I think that

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Speaker 1: three D is going to to first and strongest, and

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Speaker 1: then eventually it will trickle down into other stuff. You'll

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Speaker 1: get people who want certain three D movies, and we

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Speaker 1: may eventually start to see other kinds of programs created

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Speaker 1: in three D, and then who knows, maybe five years

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Speaker 1: down the line, everything will be three D. Uh. I

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Speaker 1: think that they really need to get past the whole

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Speaker 1: you need glasses to watch this thing for that to happen. Also,

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Speaker 1: if that does happen, it's really gonna leave out a

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Speaker 1: lot of people who have lost vision in one eye,

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Speaker 1: because you do need the use of both eyes to

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Speaker 1: be able to perceive depth in all the three D

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Speaker 1: systems that exist right now, except I think maybe the

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Speaker 1: lenticular display, because that that does it for you. I think,

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Speaker 1: I don't know. I don't know. I didn't try closing

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Speaker 1: one eye when we saw you know, we actually had

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Speaker 1: a chance to see one of the uh the TVs

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Speaker 1: with a lenticular film over the screen, which meant that

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00:24:53,480 --> 00:24:55,320
Speaker 1: you did not have to wear glasses to see it

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00:24:55,400 --> 00:24:56,879
Speaker 1: to see the three D image, you know what. I

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00:24:56,960 --> 00:24:59,320
Speaker 1: think there's gonna be some at a consumer electronics show,

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00:24:59,359 --> 00:25:01,639
Speaker 1: which at the time of this recording, I'm about to

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00:25:01,720 --> 00:25:03,320
Speaker 1: leave to go to it, and then by the time

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00:25:03,320 --> 00:25:05,480
Speaker 1: it publishes I will have already come back. So this

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00:25:05,560 --> 00:25:09,480
Speaker 1: is time travel you guys, at the first time we've

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00:25:10,440 --> 00:25:15,440
Speaker 1: uh impersonated con travelers. Nope, and it won't be the last. Well, Gabriel,

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00:25:15,480 --> 00:25:18,080
Speaker 1: I hope that answers your question. Uh, if I didn't

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00:25:18,080 --> 00:25:19,919
Speaker 1: answer your question. If if you're thinking of a very

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00:25:19,960 --> 00:25:23,399
Speaker 1: specific product, write me back and send a send a

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00:25:23,440 --> 00:25:25,000
Speaker 1: link to it and I'll take a look at it.

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00:25:25,040 --> 00:25:27,159
Speaker 1: But from what I could see, that's that's what it

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00:25:27,240 --> 00:25:29,199
Speaker 1: looked like to me. And if any of you have

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00:25:29,240 --> 00:25:32,560
Speaker 1: any questions or comments, you got something you want to

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00:25:32,560 --> 00:25:34,920
Speaker 1: get off your chest, send it to tech stuff at

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00:25:34,960 --> 00:25:37,280
Speaker 1: how stuff works dot com and Chris and I will

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00:25:37,280 --> 00:25:42,200
Speaker 1: talk to you again really soon for mora on this

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00:25:42,400 --> 00:25:44,880
Speaker 1: and thousands of other topics. Does it how stuff works

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00:25:44,920 --> 00:25:47,000
Speaker 1: dot com And be sure to check out the new

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00:25:47,040 --> 00:25:50,280
Speaker 1: tech stuff blog now on the house stuff Works homepage,

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00:25:54,520 --> 00:25:57,119
Speaker 1: brought to you by the reinvented two thousand twelve camera.

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Speaker 1: It's ready, are you