My friend has a 722. It is hooked up to two tvs. However tv2 has a rf remote which you know. The problem is when tv2 remote is used it also works tv1. We changed the address on both remotes and it did not fix the problem. We also changed the address on tv 2 several times. The receiver is set up on shared view. Looked through the owners manual and either missed the info or cannot find it. Do not know what to do next so would like if someone would help us with this problem. Thank you for your help.