FWIW, I'm using the coax for my DVD digital feed, but OPT2 (no real reason for 2 over 1, just happened to be the one I hooked up first) for my satellite. Haven't had any problems with audio drop outs at all (and I've watched FOTR twice already, along w/ once through all the extras). I've also gone through Atlantis a few times with no drop outs either.

Also, I have the sixth channel in use.