The recent retune at Winter Hill transmitter means you had to retune for Freeview reception of BBC1 BBC2 and a few others.
Our main TV was ok with an auto retune - it got all Winter Hill
stations correctly however our other TVs (even though on the same
communal aerial) needed manual retuning otherwise the Welsh BBC1
&2 S4C etc. took over.
I had to look on the internet to get the right new channel numbers, then do a "new installation" to clear the tuners memory, then manually install CHs 50 upward.
All this to free up more frequencies for 4G mobile phones.
I think they should consider the problems this causes for lots
of people who are not able to sort their TV's out. I had to
retune the TVs of two other families in our block, otherwise
they would have had to call in an engineer.