Buffy Widescreen

I have a lot of shows and there are especially SF. But some are WAS (new shows). Cons Buffy the Vampire Slayer (1998-2003) is mainly SF, but the last two seasons are WAS. But I've seen a few episodes of Hannah Montana (on Youtube, posted Disney Channel) is FS, or is it just because he does not play full screen on that channel or something .. I notice that when I download from the House (filmed from the Global HD), it was only when my sister she watches on TV (which is also global, but another channel and I think it's Global FS.

Another issue is that, looking at a program on some networks show in SF if you have a TV SF? Because I do not understand.

Also, he shows an old (1988-1993) called Katts and dogs and it is not yet on DVD and it is no longer on television. If it happens on the DVD, it will be in SF or was it?

A bit of explanation:
A number of TV episodes were filmed in widescreen format largely in anticipation of more HD broadcasting full time in the U.S. (ROA was broadcast in HD since 1996, for example).

A show full frame shot like that always appear on a TV-style traditional, but high definition televisions will appear in a box, similar to letterboxing for DVD standard definition and 1080i HDTV numerous, Due to the standard definition (1:33:01) the limits of screen size, shows in standard definition can be remastered in HD 480i resolution that public order is on Universal HD channel Sleuth.

[World Afilliate your sister might not yet be broadcasting in HD if the planet is running in HD House (the show is filmed in widescreen).]

Hannah Montana is shot in full screen, but is played on Disney Channel HD remastered in 480i resolution (the HD version of full screen, by the way).

Regarding the last part of your question, if Katts and dog had to be released on DVD, it would be controlled in full screen, how it has been shown on television.