My 722K came with one IR remote for TV1 and an RF remote for TV2. Will a 722K support a second RF remote to control TV1 in place of the IR unit?
Not sure exactly what you're saying. In my setup, SHMBO has her IR remote for TV1, and I use my UHF for TV1 over in my sector of the living room. The TV is in dual mode with another UHF remote controlling TV2 from an SD TV in a bedroom. Obviously different addresses for each UHF remote....Nor can you have IR and UHF enabled. It's one or the other...