I did some playing around. If I use component cables it will show up on the tv as 1080i from a known 480 source, however the picture looked like crap and had artifacts at top edge of picture. The Hd channels looked amazing, at least looked good. I am going to try taking HDMI straight from cable box to tv and see what kind of picture I get. The only real reason for the receiver is for the audio. Since the audio will be better from dvd source I will use Hdmi cable for that and set my output as through for the video.

Hope to gain a wealth of knowledge and maybe use it.