After lurking on these boards for a while I decided to buy a Toshiba 32zp48. The geometry on the one I got was out by over 10 mill so Toshiba replaced it about three weeks ago. The second one was OK until tonight when my wife decided to check what was on TV with the TV guide on Sky. It was then we heard a buzzing coming from inside the TV - not the speakers. She regularly checks the sky TV guide and the buzzing has only just started tonight. More investigation shows that the buzzing changes tone and volume with different camera shots on any TV channel either through sky or just the TV. Playing a DVD is OK though. I have the sky box on ext1 with a profigold scart lead, video on ext2 with a profigold scart lead and pioneer DV575 on composite/optical audio on ext4. Is there an explanation for this buzzing? Leaving the TV off for a few minutes doesn't help. TIA.