Yeah, I tried to figure out a way to do this but only found solutions like the Terk Leapfrog, which some friends indicated was pretty bad. I tried to research this about a year ago and didn't come up w/ anything worthwhile. In addition, most of the solutions only allow for composite video and 2 channel stereo, so you're unlike to find anything w/ high quality audio or video.
The best was is to have a full audio/video distribution panel but that requires A LOT of hardware. Much cheaper to have duplicate systems.
The only other solution is to wait for the Ucentric type of solution from DirecTV or the Moxi box to come out. Perhaps Media Center PC has a solution, but all of those are a ways out. Good luck and let us know what you find.
