The box frequently freezes and nothing works apart from switching the whole thing off and re-booting. It also skips, the picture breaks up, the sound goes and the box has recently started turning off recordings a few minutes before the programme has ended!
It feels like it has just 'done it's time' and needs replacing. Any suggestions please?
Try a Youview Maintenance Reset (Option 2: Keep Recordings).
Please note any future scheduled recordings will be lost and will have to be rescheduled.
Set the box back up and see if there is any performance improvement.