I've been having on and off probs with this pvr for a wee while now so am getting a replacement tomorrow thanks to www.petertyson.co.uk However, I am a bit worried that one of the probs has been break up on HD channels only which started a couple of weeks ago. The signal strength is always 83% and signal quality 100% on this Mux but the signal quality goes to 0% when the break up occurs. It then goes back up to 100% immediately after. So I wondered whether anyone else has problems like this? Is it due to weather conditions, as I have been told or does it sound like a fault? Thanks!