I have the exact same problem. My Spectrum remote no longer turns on the TV or changes the volume as of today. I have tried and tried to reprogram it, but it will not work with the TV. I called Spectrum, and they thought something is wrong with my remote and are sending a new one. After the phone call, I decided to try an old Spectrum remote I had, and it will not pair with the TV, either. I then looked through the menu on the TV and saw that the TV had installed a software update this morning, so I came here to the forum to see if anyone else is having a similar issue. Evidently it IS due to the software update! I tried the other codes listed at the link in the post above, and they do not work, either. Roku, please FIX this issue!
Same exact issue. You and I are sharing a brain! I went through the same process of contacting Spectrum, TCL, and then ROKU. The issue is clearly related to the software update on 11/1/23. I had gone to a Spectrum service center and received three new remotes. Of course, same issue of not being able to pair with my TCL tv.
Shame on you ROKU!!
