I'm sorry to hear that you're having an issue.
I've seen very little of this symptom on the 2010 models. However, a repair is an option, but you can check with your retailer to see what all of your options are.
First off, I love my new 58" plasma 3D samsung tv (PN58C8000), however, when I am orientated just to the left of the center of the TV, I do hear a buzzing sound. Is there anyway to correct this? Should I have Best Buy bring me a new one? The TV was purchased and installed by Best Buy/Geek Squad on July 17, 2010. The TV is mounted on the wall....