I just installed a Hitachi 65S700 in anticipation of getting a 921 (when they start shipping those again) and have a problem with the signal from my current 501 to the TV. I have checked it both through the co-ax out and S video out and the picture is not very sharp. I run these same signals though my analog TVs and the picture looks great. Is there something unusal about this TV or HD TVs in general that they don't know how to handle must the normal signal out of a dish receiver. I do have something that is called VIRTUAL HD that switches between 540p and 1080i and it doesn't seem like I can turn that feature off. Anybody with a Hitachi had the same problem?