I once had two HR-20s to my main TV, then the five tuner HR-44 whole home came along and replaced one of the HR-20s that died about 10 months ago. Because the HR-44 can control viewing on both units, I only kept the HR-20 to burn off programming on it. Soon after the installer left, I noticed that the HR-20 Remote and the HR-44 remote controlled both units. I screwed around for a while back then and finally gave up and just turned off the remote for the HR-20 because I was accidentally deleting and recording stuff on the HR-20 while actually doing other stuff with the HR-44 remote. Fast forward to yesterday. I decided I wanted to be able to play music, watch TV, and play pool at the same time on occasions like new years eve parties - for example have a football game playing on the TV while streaming music through the home entertainment center AVR. Unfortunately, my fancy, high dollar AVR will only let me do one thing at a time - watch TV or listen to music. I came up with this solution: I ran the HDMI from my HR-20 to a second input on my TV while the HR-44 still goes through the AVR. So to listen to music I can now stream Spotify through my AVR, put the TV on the HR-20 input and use it as the tuner to watch TV. Success! Then I noticed the old both units on the same remote frequency problem. So if I or anyone does any recording, playing, pausing, stopping, deleting etc... on the HR20, unwanted things could be happening with my HR-44. I spent about 2 hours yesterday working with the HR-20 remote trying to get it to a different frequency than the HR-44. No luck. I followed the onscreen instructions and from memory, here is what I tried: Set HR-20 remote to AV1 Go to remote setup on HR-20 mute+select (light flashes twice) enter one of the codes like 00001, 00002, 00003... (I tried them all) Hit power to test (nothing) Set remote to DVR position and it remains on the the same frequency. Rinse and repeat with AV2 position and various combinations. No luck. Is my remote broken? Why can't I change the remote frequency for the HR-20? Any suggestions would be welcome. I could next try to change the HR-44 remote frequency but I hesitate because it is set up to work with my Harmony remote and that will be a few more hours figuring out how to reprogram the Harmony to use the new HR-44 remote frequency. So before I go there, I want if at all possible to change the HR-20 remote because it would/should be a nice clean solution.