Are you still within your 12-month warranty? If so, you can schedule a service to have it looked at by a Samsung technician.
We've had our LED TV for a little over a month. Recently it has started to randomly shut off, stay off for a second, then turn back on. I checked to see if it was an issue with the power switch, but nothing else that is plugged in is having a problem.
Does anyone know what is causing this or how to fix it?