Why is 720p still around?

[nec1912]

Originally Posted by Jeff Kleist

Especially a 720p broadcast signal. 19.2 isn't really the best for 1080i, especially when there are sub-channels (which there often are). My Fox station broadcasts full bitrate 720p, and they kick the butt of all the other channels in terms of consistency and quality.

720p also lets them offer cheaper TVs. Most people don't care if it's 720 or 1080 in the bedroom for example.

What is the aspect ratio of say 720p and 1080p And what is better 1080i or 1080P ?

Also is the picture quality that much better that say 1080p over 720p ?

And most 90% stuff on TV is not in HD has only some channels are HD.And not all HD channels have HD programs.The news channels ,sports channels and movie channels seem to be more into HD but TV shows channels and reality TV channels are not.