Euro_Hunter said:Try switching your set top box off for at least 30 seconds and then back on again, this usually sorts out this kind of problem.
Tesla said:could have been water in the cable?
Whack the aerial cable directly into the TV, what's the analogue reception like?
Tesla said:It will dry out but when it rains it will come back and cause the cable to corrode from inside out. Also the water will run down the cable into your nice shiny telly!
How old is your aerial and cabling?
Have you checked for transmitter works on the BBC website?
Tesla said:Sounds like you have an internal aerial anyway, in the attic or something? So obviously no water up there.