[kenberman]

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a dvd is progressive but still not true HD. You are only getting it at 480p. When BluRay dvd's come out (also on the ps3) you will have true HD quality on your tv. Do you have a progressive scan DVD player? The quality of your DVD player (the decoder on it) will really start to show on a nice HDTV.

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progressive/Blu Ray/etc are all different issues than aspect ratio.

you prob know this, but HD deals with the amount of lines on the screen at the same time. Progressive/interlaced deals with how those lines are displayed.

aspect ratio deals with the horizontal/vertical ratio of display