Had to go through 2 of these before giving up
Bought this TV, got it home, BUZZZZZZ....TV repair said it was the cable, cable company said it was the TV. Took the TV back, got a second one, did the same thing. Changed cable companies, rewired the house, same thing. Returned it and got Panasonic, no problems. The buzzing noise only happened through the ypbr connection to HD cable. Did not have problem on regular digital cable nor on HDMI cable.