I just bought a Samsung 32" LCD TV to replace my Sony WEGA XBR. I also have a Panny DVD S-77, an XBOX, a Direct TV Tivo receiver and a Denon AVR-3803 HT receiver. I have the receiver connected via component to the Samsung (no HDMI on the Denon) and I've connected the DVD via HDMI to the Samsung directly. I also have the optical out of the DVD going to the Denon. Would it be better to run the optical cable from the Samsung to the input of the Denon as opposed to running it from the DVD to the Denon or would there be no difference in terms of quality? What is the purpose of running audio FROM the TV to the receiver?