I have two identical TiVo remotes. One is six the other is two years old. Both used with a Roamio ota box. They both work fine. All elements work as normal. The older one is set to work in the rf mode, which is what I need. The newer one is in the ir mode. I tried everything to reprogram to make them both work in rf. No luck. Did the TiVo and c button, d button.. removed battery tried again. Tried to reset both. Just can't get them both in the rf mode. Perhaps they both cannot be in the same mode?