I can fix some things about guide data (in the last few days I have been busy dealing with changes to station names since 1 July 2021), but I don't know how to get tivos to read guide data for channels added by TV networks in the last few years. I have tried and failed a few times over the last couple of years. I have the same problem with channels like 12 and 74 in Melbourne (and have a manual recording for a weekly show on 10 Bold because I can't put guide data onto channel 12).

I don't think there is anyone else better placed to fix it than me. (Apart from the guy who set it up in the first place and gave me some training, but I haven't been able to get a response from him.)