I have a 625 receiver and have never had problems with my UHF remote for my second tv until I bought a new tv for tv1. I did move the receiver a little but not much and is pretty much the same distance as before and definitely less than 200 feet. I've tried adjusting the remote antenna in pretty much every angle but it still would only barely change channels and such for my second tv. I have even used the attenuator without success. Before wherever I was I would be able to use the remote without problems. Now, even if I move a little one way it might not work; I was hoping that someone could tell me how to increase the sensitivity for my remote or help with my problem.