I have an RC64R where the Pause button and some other buttons are getting flakey so I replaced it. DTV sent me an RC65. I could not program it to control my TV volume (Olevia LT32HV), although this works fine on the RC64R and worked fine on the remote I had before that. (BTW, I don't know why they didn't send an RC65R). I thought there might be a problem with the remote so I tried my wife's, which is an RC64. I couldn't get it to control my TV either! The RC64R works and the RC64 and RC65 don't, and I am wondering why. Is it possible the internals of the R remote are different or that it has a different manufacturer? Should I expect an RC65R to work because the RC64R did? BTW, I can understand why a remote might not be able to handle new codes, but not being able to handle something that used to work seems fishy.