This may be a dumb question but why does the all the video circuitry have to go through the receiver. I understand these high frequencies are not good for the audio side. Does the receiver actually do anything with the data or is it just to interconnect other devices. Second dumb question is if DVDs are 5.1 what is the point of 7.1. If 7.1 comes out on DVD what will happen to 5.1 receivers. How does the decoding then work in both scenarios. Wont the decoding get confused.