I just hooked up my 921. Dish 500, OTA Antenna, Sony 42" LCD. I used the DVI connection and the optical audio. I set the display to 1080i and 16:9. The OTA and Dish HDTV channels come in great I've never had HD hooked to this TV and I'm very impressed. But the regular satellite channels are not too good, I got way better results from my 7100 Dishplayer. Help! I don't want to send it back, but I should get better quality.