I have read the diagrams to extend the UHF antenna on my 722 and that works fine (Thank You!!). I'm now trying to take this 1 step further where I also combine channels 1 & 2 and then switch the receiving channel on the remote tv to watch either channel. Everything works fine except that I can't get the remote for channel 1 to work in a remote location other than the room the receiver is located. Is the external UHF antenna used for both channels 1 & 2? If so, any suggestions why it doesn't work? If not, is there a way to extend what I assume to be an internal antenna? Basically I'm trying to make either channel work on any tv in the house and I can't get the channel 1 remote working past the same room as the receiver. Thanks