Hello, I have a friend who just switched to DirecTV and has a problem with 2 of his D12-700 receivers both getting commands from each other's remotes. They are both located in different rooms (Family and Livingroom) that are not seperated by walls or doors, so when you channel up on one, the other one changes channels. I know with E* receivers you can set up to 16 unique codes for the IR remotes (actually it's 32 if you know what you are doing) to prevent this problem, but I really have no clue about DirecTV's equipment. The remotes are model RC64. Is there any way (other than completely re-arranging the two rooms) to fix this problem? Thanks in advance for your help.