I don't usually spend much time in live tv on the mini... So this might be an old problem?
I was just in the guide, and tried to change the option (a) and set it to show all channels... And nothing changed. Favorites works, but 'my channels' and 'all' both show 'my channels'.
It just rebooted... I was watching something on netflix and it crashed n rebooted on me.
Both the mini and the xl4 it's paired with are running 20.3.7