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?