The second thing to consider is, will you be using the TV for Broadcast HDTV, or HD Gaming, or Blu-Ray Discs, Cable or Satellite?
For Gaming: You WILL need 1920 x 1080P for HD Games, on PlayStation 3 or Xbox 360 Elite High Definition Movies: Yes you will need 1920 x 1080P for BluRay HD Movies from a PS3 or a Blu-Ray disc player, or even an Upconverting DVD disc player. Broadcast or Free Over The Air HDTV.. 1080i versus 720p. At this moment, not all TV Networks are broadcasting HDTV signals, and if so, only at some times. That’s not so bad if you only want 720p for sports, which is the best performer for fast motion, car racing, etc… But some stations also transmit 1080i. 1080i is a little confusing, until you realize that 1080i is a virtual size. Not a real physical panel size. It exists only as a video signal, because all flat panels are progressive. Meaning, no lines are displayed. All you need to remember is that the signal is adjusted by the internal processor of the set to fit the panel. The larger 1080i picture is made to fit the smaller 720p panel by “downscaling” or compressing the picture in a graphics