At times, a 3 week old TV set has started to have the sound distorted (speech mainly - - music seems less affected) by buzzing / vibration. I've checked the BBC site for known transmitter problems but wonder if this more likely to be atmospheric disturbance rather than a faulty speaker.
Thanks. I live in a block of flats with a communal aerial so will ask around if any others have the same problem. Nearest neighbour has Sky and it's OK.