JUST WANTED TO HELP SOME OF YOU OUT FIRST OFF THE MAIN REASON HDTV was created was because a large set can't give a good picture in 480i think of it like pixels large area few pixels grainy picture no detail.
Also i have been in the HD game for 3.5 years i have a 1080i set with component input only, here's the deal no one is broadcasting in 1080p yet i was told it would be years before 1080p would be a standard we are just starting to see this, 1080p is HD-DVD and blu-ray and some HD cameras.
Also 1080p has the same amount of information in the picture as
1080i it all has to do with scaling 3:2 pull down repeat a frame 3 times then 2 times because true HD is 1080/24 frames per second (movies) so source to input must be 1080p to be true hd 1920 x 1080 or what hd was ment to be from the start.