We have the Sony 42A10 HDTV and would like help in getting the best possible picture from it. The TV is connected to a Directv H20 HDTV Receiver via HDMI. Audio comes from our HK AVR 635 using optical for the DTV and Coxial for the DVD. Our DVD is the Denon DVD-2200. I tried using one of those test dvds and was not successful in adjusting the picture so I reset the video back to factory specification. As you can tell I am not technically inclined. Thanks in advance.