You may recall a few months ago that I was having a PITA setting the digibox up in the new house.
It suddenly just started to work just fine. It's been fine for a few months now - albeit with bollock-all worth watching on, but I don't think we can blame the aerial for that...
Over the last month or so, though, one or more of the multiplexes will break down completely. Initially, the picture will crackle, block-up and halt briefly. Then the pic goes black, and "No or encrypted signal" pops up. Usually, it's BBC - all the Beeb channels plus one or two others are gone, but most of the rest'll be fine.
Eventually, it'll come back. Probably.
Talking to a neighbour, they have similar. "Only ever in winter".
What could it be? Transmission issue? Meteorological?