I don’t know if this will work for anyone else, but I had tried to reprogram the remote hundreds of times (maybe a small exaggeration but seems close to it over the past few days). When I go into Settings > Remotes & Devices > Remotes > Enhanced Voice Remote (In Use) Set up remote for TV control, it would ask if I hear music playing. I would and would click “Yes, music is playing” after that it would seem to jump a screen and say “Success! Your Roku remote is set up to control this TV’s power & volume” but it wouldn’t work. I guess I was pressing the OK button too hard, or for too long as I just realized that if I press it very lightly and quickly, I get another screen asking if the music stopped playing. When I clicked No, it then muted my TV and asked again if the music stopped playing. I said Yes and now am able to change the volume, mute and power on my TV with my Roku remote.
