Is it only happening on the source with the cable/sat box attached? And with which cable is it attached?
The Tv picture and sound intermitently flash on and off for a few minutes at a time. Sometimes a channel will disappear completely for awhile and then return. I've swapped cable boxes from another TV, and the problem is still there. The power stays on even though the picture and sound flashes on and off. I bought the set in November 2009 and it was manufactured in June 2009. I am aware that there was a recall involving capacitors on some models. However, I've been told by Samsung customer service staff that if there was a capacitor issue, the power would turn on and off too. Does anyone have any idea what might be causing this issue?