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post #1 of 5 (permalink) Old 2013-01-27, 01:05 PM Thread Starter
 
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Aspect ratio on TV Programs

Has anybody noticed that there are lots of broadcast programs with different aspect ratios? Even on the HD channels I notice some black bars above and below the picture and the pictures is not "stretched" this is the broadcast signal (even on shows specifically produced for TV,cable.SAT). I notice this a lot on regular SD where I do not have HD channels. Even on YTV, Family, treehouse,TLC etc. Some of the aspect ratios seem very odd. Some have a lot of black bar on top and bottom and some have much less and everything in between. Can they not just pic an aspect of full 16:9 or 4:3 and stick with that. I can understand different AR for movies , anamorphic and such, but TV programming?
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post #2 of 5 (permalink) Old 2013-01-27, 02:55 PM
 
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I think they should stop all non 16x9 programming even if it's not HD. These days if you have a dish you should be able to afford a new TV.
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post #3 of 5 (permalink) Old 2013-01-27, 04:58 PM
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Here's the FAQ on Black Bars. There are lots of different aspect ratios and black bars are a fact of life if you watch your channels OAR, unstretched, original format, etc.

http://www.digitalhome.ca/forum/showthread.php?t=76089

Most product produced for TV was 4:3 and is now 16:9, however, movies can have any aspect from about 1.1:1 to 2.7:1. This is the director's prerogative, as you mentioned, but there can be directors of TV programming too, that may want to "stand out", although for most TV I haven't noticed much programming outside of 4:3 or 16:9..

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post #4 of 5 (permalink) Old 2013-01-27, 05:07 PM
 
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I have noticed that there is some tweeking the picture size of non HD channels.
Even when I change the aspect ratio on my 630,I still get a zoomed in view on some of the channels and programs.
Which makes for a poor grainy picture,plus the left side is cut off a bit sometimes.
Global Calgary's news broadcast sometimes suffers from that,you can see the titles cut off on the left side because it's been zoomed in,it's not Global but Shaw Direct becuase
if you pull back and just use the 4.3 aspect ratio there still cut off.
Shaw needs to pay more attention to what there broadcasting or as in this case what there not
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post #5 of 5 (permalink) Old 2013-01-27, 05:17 PM
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I don't believe that providers ever change the format of the picture (at least not intentionally - if the format is incorrect, contact the broadcaster and copy the provider). From my experience, it's always the broadcaster and most videophiles want their programmes to be OAR, even if it means 16:9 inside 4 black bars on an HD channel if the original programme was SD. That way I can decide if I wish to zoom/stretch the programme which results in poor PQ and distortion if stretched. Sometimes the broadcaster may do a good job of the upconversion/zooming of 16:9 SD, so that is something that I don't worry about as much as stretching.

Of course some people zoom or stretch using their STB or their TV and that's fine if they wish to do so, it doesn't affect me. Here's the FAQ on Stretch Modes:

http://www.digitalhome.ca/forum/showthread.php?t=76074

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