I was also having problems with my UHF remote while watching TV2 in the bedroom. I fixed my problem by attaching a 18" piece of coax to the RF antenna port, attaching a barrel connector to the other end and screwing on the antenna to that. This allowed me to place the antenna to the side of the 622 and gave me a lot of range. I don't know if I was experiencing interference with the antenna before but now it works fine in my bedroom that's about 50 feet away. This was a simple solution and it might help. Give it a try and report back with your results.