On my XR-55X90J, the main home screen Live tab and the "Watch Live on YouView" row just show empty blocks saying "No Programme Info". However, if I actually click a channel, it opens the YouView app perfectly and the TV guide in there is fully working. The channels are there on the home screen, just no guide data.
I've tried a number of things with the help of AI friends:
Hard reboots from the wall and terminal.
Cleared the cache for the Live TV app and Google TV launcher via settings.
Ran pm trim-caches 4096G over ADB to aggressively flush all system caches.
Force-stopped the core TV Provider database (com.android.providers.tv) and the Sony tuner hardware processes (com.sony.dtv.tvinput.tuner).
Completely disabled and re-enabled the YouView package (com.youview.poa) to try and force a re-sync.
Tried to use ADB to disable the annoying Sony home screen customizer row (com.sony.dtv.launcherxcustomizer), but Android blocked it with a SecurityException.
Rescanned all my Freeview channels.
Anyone with a similar experience and a solution?