I finally got around to moving the DirecTV DVR box (HR22) from the 2nd floor near the TV to the equipment rack in the basement. I will eventually try to integrate this fully into LinuxMCE, but she with whom I live is getting tired of my development efforts. I had to make it work immediately. For control, I merely changed the settings for the DVR and remote control from IR to RF. The range of the remote is good, allowing us to operate the DVR from the second floor couch. For video, I have a 25 ft component video cable running directly from the sat box to the TV.
The trouble is no sound. I ordered a 25 ft RCA cable to enable the tv speakers, but that will arrive next week and will sound like crap. In the meantime, the sat box is sitting right next to the Denon receiver in the basement. I connected the DirecTV audio to the Denon using the DBS input, but I don't know how to tell LMCE that this connection exists. What I would like to happen is the following. I use the tv remote to switch video inputs from DVI to Component (bypassing the core as fas as video is concerned). Then I control the sat box using its own RF remote (also bypassing the core). For sound, I would like to use the gyration remote to tell the core to change the Denon's input from V-Aux to DBS and to control volume. There is a working serial connection between the core and Denon.
Can someone steer me in the right direction? Eventually I'll get a Hauppauge Colossus and an IR blaster to bring everything under control of the core, but this is postponed for reasons of marital harmony.