I'm using a Roamio Basic with an over-the-air antenna. (no cable card. no tuning adapter)
I've recently started having problems with V53 errors a on couple of channels. TiVo won't record on the channels, and when I try to tune to them manually I receive the message:
"Problem with the signal on this channel. Trying again. (V53)"
If I manually change the channel back and forth, and/or reset the TiVo, I can sometimes get the channels to tune in eventually, and then they work just fine. They are channels that I receive quite well with my OTA antenna, and I just started noticing this problem recently (after the latest 20.3.8 update?). It's possible that the issue was there before, but I've only noticed it recently because the TiVo keeps missing recordings on these channels.
All of the other threads that I see referencing this problem seem to indicate that it is most likely related to things like tuning adapters and cable cards, but I do not have either of those items.
If anyone else is seeing this same behavior, or has any suggestions regarding how to resolve it, I would greatly appreciate it. Misery loves company. :-)