These Samsung buzzers are totally unacceptable . I have read 3,000 posts all through 2009 on the dreaded buzz and directional buzz, so much so that I avoided Samsung. I waited....and I waited... now end of 2010, and still the same old crap, more buzzers, sets being returned, tech's coming out to change components, etc etc.. granted, several guys say Mine does not buzz, but it seems that in this forum and a few others, the Samsung buzz is still a problem. Not as much as it was in 2009, but the buzzing sets are still there.
The only cure I can see for this buzzing is to buy a Panasonic. I've read, and re read Panasonic G20/25 forums, and I believe there were only about 5 or so posts with a buzzing complaint. I will also say that while the Samsung picture quality might be just a tad better, (Ive seen both) I think having peace of mind is more than worth having to sit there listening to the buzz. It bothers some more than it does other, but anything outside of the normal sound that a plasma makes is really unacceptable in my opinion. I'm pretty much set on buying the Panasonic now, this Samsung crap creeps me out, with my luck I'd buy a Samsung and I'd be so paranoid I'd be listening to every scene change, and brightness shift for the dreaded buzz.
Dont waste your time and money, Samsungs are prone to buzzing, they say its " Normal " ... Get a Panasonic... I'm going to..