I have read a few notes about the buzzing sound from the Sony sets. I posted a question to Sony about the noise. Here is there response which I think is a valid one, allthough I have a set which doesn't make that much of a buzz. I think some sets may be worse than others. "Most CRT based televisions do make a low level buzzing noise, which is attributed to resonance of the scan coils. The effect is worse on 100Hz models because the higher scanning frequency is easier to hear. This is a known characteristic of 100Hz televisions due to the technology employed and is therefore not a "fault". It is generally not loud and therefore is not usually noticeable in normal viewing conditions. However, in a quiet room it may be evident and the intensity may vary from set to set. Having said this, we do acknowledge that to offer a diagnosis by correspondence is not possible and therefore, if you feel the television is not working to Sony specification, we would recommend that it is inspected by an authorised service engineer who will be able to give you an informed opinion based on their examination. "