Perhaps I should have started a new thread - or maybe this has been answered elsewhere. I installed a Thomson 160Gb PVR with Top-up TV for my sister in law, and although it has been working just fine for a month or so, it has suddenly started to suffer from picture freezing and pixelating. I suspected an aerial weakness (but see later comment), and bought an aerial amplifier. It made no difference, but here is the rub, the aerial goes straight into the PVR, than loops through to the TV (a Sony 32"), but the TV does not suffer from pixelating at all (with or without the amplifier). I carried out a rescan for both TV and PVR, and ended up with the PVR no longer finding ITV1 or Channel 4. BBC1 and 2 are fine, Channel Five suffers from freezing. The very local transmitter, Storeton, is undergoing some maintenance at the moment, but actually the aerial points to Winter Hill. Any thoughts or ideas, anyone, please?