I had an HR20-700 using RC34 remote in RF mode. range was incredible and never missed a button press. My 700 died and when the replacement came in, it was an HR20-100. I setup the same remote to it in RF mode and yet it is very flaky. It literally is almost acting like IR it is so bad but I know its not. Does anyone else have a problem with RF on the HR20-100? I do have the antenna connected to the back which the HR20-700 didn't even have.