Thanks for that explanation, it makes good sense. Dishtv has various settings to choose from as your output, such as 1080i (which I have it set at), 720p, 480p and 480i - there is no "native" setting. That means on stations such as ESPN, FOX, ABC and maybe a couple others, I would go in manually to change the setting from 1080i to 720P. Yes, it would be a pain but not too bad. As you say, if the goal is to get the best possible signal to the display this is what must be done. Equally important is to take the Yamaha A/V receiver out of the stream and place it in "Direct", rather than "Processing" video mode. This way, only the Oppo is manipulating the signals. I will try setting up the system that way and see how it goes. Thanks again for the tips.