Well it doesn't seem possible. I chatted with an online rep, and they said that you can't use two different inputs at the same time...I guess of any sort. You would think, when switching to an analog signal with no video, that it wouldn't disrupt the video passing through the AVR. Well, I might have to take this one back, and maybe try an Onkyo or Yamaha.
BIslander, I also had that in mind, but it's something that's just gonna erk me now, ha.
Thanks again for the info.