When I got my 722K installed, the installer set up a 6.3 IR/UHF Pro as a second TV 2 remote because I have TV2 split to two rooms and didn't want to be chaseing one remote back and forth. Did some swapping of the 722 and 722K for trouble shooting and now I think I want to keep the receivers in the swapped locations. Question one is, what do I have to do to make the 6.3 work with the 722 TV2. When I had them swapped I tried to control TV2 from the 722 and it didn't work. Question two is, can a 722K remote be used to control a 722? Thanks.