Hello, years ago a Directv tech set this up( RC 65 RX), and I am no techie. I have 2 HR20-700's, both set to RF. I use the slider at the top of the remote, one with Directv Logo and the other AV1. The tech guy, was telling me what he was doing...something about the last 4 or 5 digits of the DVR..My remote has bitten the dust, my question is of course, can anyone give rather simple instructions on how to program a new remote ( I haven't got one yet)? Will I have to mess with the DVR's since they are already set for RF? Thanks for any help!!!