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Originally Posted by JeremyR
That definitely clears up my questions on the DVD. It's a confusing thing if you are completely clueless. My TV displays both 780P and 1080i, and I assume the 1080i is better, or at least it looks better to me than the 780P on my XBOX 360, though the difference seems negligible so I have it on 1080i.
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Sorry I can't help with your XBox question, since I am not a gamer.
However I shall try to shed some light.
Hi Def Broadcast resolution as definied in the HD spec is either 720p or 1080i. Your TV (per your link) has a native resolution of 1080i, that means that whatever signal you send it, the TV will convert it to a 1080i signal. Your TV can accept a 720p signal (since broadcasters have the choice between 720p and 1080i) however it does internal scaling to convert the signal to it's native resolution. The TV will do this with any signal.
I have Comcast with HD DVR and have found their service to be fair to good, they have been improving. The basic HD package in my area has the following channels in HD: NBC, CBS, ABC, Fox, PBS, WB, DiscoveryHD, INHD1, INHD2, UHD, TNTHD
HBO, Cinemax, Showtime and Starz all have HD channels but cost extra, just like regular cable.