Well.. You also have other options. As far as I know, there is no reason why any one input cannot be mapped to 'other' video sources.
For example, in my system, I have the cable DVR coming into the 990 via component and DVI, but I made one for each, that is, one input (what I call CBL + COMP) gets the video from component and the audio from TOSLINK (optical). The next video input (what I call CBL + DVI) gets its video from the DVI feed on the DVR, but its audio from the same TOSLINK in.
I took a similar approach with my Audio Tron Digital AudioReceiver (A network player that I use to stream .wav files from my music server PC in the computer room (via CAT5)). In other words, I used yet another video input and renamed it ATRN + VID. In this case, I have mapped a TOSLINK input (connected to the Audio Tron) and the component video from the DVR to this '
phantom' video source. I also did this again, only this time, I mapped the DVI rather than the component video.
For me...it's perfect...I can watch the DVR but have the music feed from the audiotron at the same time. So, whenever there's a game on that I want to see (but don't want to hear the commentators and instead, wish to groove on some music), I opt for either of these phantom video sources. The only reason I did this with both component and DVI was just for a little more flexibility.
Try it out...
Mark