HDTV

Posted by: MacBozo

HDTV - 06/02/09 03:00 PM

Why do some outlets/channels still use 4:3 instead of 16:9?
Posted by: SgtBaxter

Re: HDTV - 06/03/09 05:47 AM

Because that particular show is broadcasting in standard definition.
Posted by: MacBozo

Re: HDTV - 06/03/09 06:05 AM

Not necessarily. Among my local stations, PBS is in 1080i, 16:9, Fox is in 720p, 4:3, NBC is 1080i, 16:9, ABC is 720p, 4:3, CBS is 1080i, 16:9, CNNHD is 1080i, 16:9, but the actual picture area is 4:3. Other HD channels have the same variations; some are 4:3 and some are 16:9. I guess they are assuming that there are still more CRT sets out there than wide LCD sets. Oh, there are some HD sources in 720p that are 16:9 also.
Posted by: NucleusG4

Re: HDTV - 06/03/09 07:22 AM

Yeah.. I see that too. HD quality in a 4:3 format.
Posted by: MacBozo

Re: HDTV - 06/03/09 08:08 AM

I wonder if they'll all go 16:9 on the digital switch on 6/12. As I recall, PBS went digital on the first go around which may be why they are 16:9 now (that applies to their non-HD broadcasts, too).
Posted by: polymerase

Re: HDTV - 06/03/09 08:46 AM

Wow. 6/12 digital switch. 6/8 new iPhones. Be still my heart.


Oh shoot. I said iPhone. Is this thread going to go to post partum mac/sys/date/announce/iphone/theblackone/notheshinyone/ringtones/blackyedpeas/you'reso2008/iphone/junemoon/?


Posted by: MacBozo

Re: HDTV - 06/03/09 08:50 AM

Can you get there from here? laugh
Posted by: SgtBaxter

Re: HDTV - 06/03/09 09:59 AM

Originally Posted By: MacBozo
Not necessarily.


Yes, necessarily.

HD format is either 1280x720 or 1920x1080, and 16:9 aspect ratio. There is no 4:3 HD format.

Just because the channel is an HD channel doesn't mean the program was shot in high definition. What you're seeing is upscaled from 4:3 480i. Kind of like you playing a pan & scan DVD on your HD set. Your TV is displaying 1080 or 720, but the original source is still 4:3 480i.

Some stations are now thinking they're slick and zooming the SD camera signal so it fills out the sides and cuts off the top and bottom. Looks like ass to me, but a lot of people are hard pressed to tell the difference.
Posted by: polymerase

Re: HDTV - 06/03/09 10:54 AM

Originally Posted By: SgtBaxter
Looks like ass to me


4:3 (_*_)

16:9 (_____* _____)





Posted by: padmavyuha

Re: HDTV - 06/03/09 11:05 AM

You get a star!
Posted by: padmavyuha

Re: HDTV - 06/03/09 11:07 AM

Seriously, one of the weirdest things I've seen over here (in people's living rooms, anyway) is folk watching 4:3-def on a wide-screen TV just stretched out to fit. They say they don't notice it after a while. Ugh...
Posted by: MacBozo

Re: HDTV - 06/03/09 11:58 AM

I don't use stretch. Looks too weird.
Posted by: MacBozo

Re: HDTV - 06/03/09 12:04 PM

My cable box shows HDTV and the resolution. CNN uses 16:9, but the actual video is in 4:3 in the center of the screen with a filler on either side. At least one of the stations which is using 4:3, 720p is actually 720p since it is far superior to the 480i on their standard channel. Admittedly, some of the network stuff may be upscaled, but the locally produced stuff is not. Even when broadcasting upscaled 480i, it looks poorer than straight 720p.
Posted by: polymerase

Re: HDTV - 06/03/09 12:18 PM

I forgot about stretch. Corrected:


4:3 (_*_)

16:9 (_*_) (_*_) (_*_)

4:3 stretched (_____*_____) really hideous I agree.

Pink Floyd Album in 16:9 (_._)(_._)(_._)(_._)(_._)(_._) hottest album jacket


Posted by: SgtBaxter

Re: HDTV - 06/03/09 03:05 PM

Quote:

My cable box shows HDTV and the resolution.


As does every cable box or HDTV. Doesn't mean squat, really. Last year most network channels only broadcast HD shows after 8 p.m. or so. The channels still list as 720 or 1080 before then, because they're broadcasting a 720 or 1080 signal. The source going into that signal however wasn't HD.

For example, tonight on NBC, channel 11.1 I have news at 6, which is broadcast in HD, NBC nighly news which is HD, then inside edition which is SD. The TV will still show 1080i however when Inside Edition comes on.

Quote:
CNN uses 16:9, but the actual video is in 4:3 in the center of the screen with a filler on either side.


Yes, when they are using their SD cameras they put CNN on the sides to fill out the screen. Compare how it looks to the shows they shoot with their HD cameras, there is a huge difference in quality.

Quote:
actually 720p since it is far superior to the 480i


That'll vary channel to channel, it all depends on the processing equipment and software they're using to put out the signal. Same thing here, one or two of the network channels looks good on the digital channel when the show is standard def, a few others look worse than viewing the analog signal.

Not unlike how some upconvert players make a standard def DVD look great on an HDTV, and some leave a lot to be desired.
Posted by: SgtBaxter

Re: HDTV - 06/03/09 03:25 PM

Originally Posted By: padmavyuha
4:3-def on a wide-screen TV just stretched out to fit.


I would say it depends on the TV. My father-in-law's TV keeps the middle of the image in the correct aspect ratio, and slowly stretches out the sides of the picture. It does such a good job you'd be hard pressed to notice.

My TV supposedly does the same, however it looks absolutely horrendous. I leave the sidebars.
Posted by: yoyo52

Re: HDTV - 06/03/09 04:14 PM

Before I got my HDTV we used to get broadcasts at a ratio of 16:12

















wink
Posted by: padmavyuha

Re: HDTV - 06/03/09 04:25 PM

smart:arse

wink
Posted by: MacBozo

Re: HDTV - 06/04/09 07:37 AM

So, if they are supposedly HD, but really not, is that false advertising?
Posted by: John Rougeux

Re: HDTV - 06/04/09 07:41 AM

Do you have it on their HD channel?

Our local channels have 2. An SD one and a HD one. The HD one will sometimes show a program in SD. Not everything is in HD yet.
Posted by: MacBozo

Re: HDTV - 06/04/09 07:53 AM

Yep, in the HD tier. Our local cable news channel is in 1080i with the video in 4:3 and side fillers. That video is exceptionally sharp - weather radar is awesome. I still think they are formattig the video to fit a standard CRT. The SD PBS channel is in 16:9 which makes it "clipped" on a 4:3 set. Some of the HD PBS sub-channels are only 480p.
Posted by: SgtBaxter

Re: HDTV - 06/04/09 08:38 AM

Quote:
I still think they are formattig the video to fit a standard CRT.


Our local news (channel 11.1 here) has the main shot in HD, but some side shots, like school closings and such are still done with an SD camera and side graphics. HD cameras are hella expensive.

The SD shots do look good however. Their radar is completely in HD.

I'm curious though, they've experimented with cropping the picture to fit 4:3, and on the sidebars they broadcast weather and traffic information, which you simply don't see on a standard television. Does your news do the same, or are they just static bars?
Posted by: MacBozo

Re: HDTV - 06/04/09 08:49 AM

Just static bars. I still wonder how the DTV switch will affect the content, though. I guess we'll see on June 12.
Posted by: SgtBaxter

Re: HDTV - 06/04/09 09:13 AM

Yeah, it's kind of odd. Channel 13 here has an HD set, cameras and everything yet they still broadcast using their SD cameras.

They did about half an hour once in HD, but that was months ago. Doesn't really make any sense.
Posted by: MrB

Re: HDTV - 06/04/09 09:54 AM

I am with you on this. I hate the effect. it was one of the things that I always asked the salespeeps about. Would I have to have it like that.

dave
Posted by: macbeemer

Re: HDTV - 06/16/09 10:22 AM

Just rescanned (auto programmed) my channel lineup. 65 analog channels found, Digital = 124. Where'd all that analog come from?