Had my aerial installed a few weeks ago (first week of April) and has been pretty much fine since - minus the occasional sound drop out and picture freeze (which typically lasts a second or so then all is fine) But last couple days it has got a lot worse - and last night and this morning has been awful. Half the channels just freeze with still pics and the sound is in an out like a scratched CD, and then the same channels just show a black screen, sometimes with sound and sometimes without, then stay black, no sound and show NO SIGNAL on the screen... I rescanned the box a few times last night thinking it might be that but it couldn't find all channels, so I tried my other box (different make and model) and that had the same issues. Left it overnight and just went to be. Rescanned this morning and found all channels and worked fine - for 2hrs then began getting the same probs! Whats odd is I am getting the Sandy Heath transmitter. On the rescans I was getting some stuff from Sandy Heath, but also getting some stuff from Emsley Moor and Winter Hill But I was getting doubled up channels. I'd get the BBC 1, 2, 3, 4, news 24 and BBCi, along with the CBBC and Cbeebies channels on Sandy Heath, with the correct channel numbers, then after the 7xx channel number radio channels I'd get them again with Emsley Moor, then again in the 800's with Winter Hill. I wasn't getting any of the Five channels, or ABC, and also missing Film4 (but got Film 4+1) When it works fine I get all the channels from Sandy Heath and thats it - no Winter Hill or Emsley Moor at all.... Is this like transmitter conflict or something?