I have looked all over the internet and can't find a solution. I even called samsung and according to them my tv does not exist. When I turn my tv on in about 2 minutes the screen will go blank, there is still sound, if I turn the tv off and back on the screen is back on. It does this in intervals. 2 min for a little bit, every 3 min for a bit, and so on. However after constantly maning the tv and turning it off and back on every time the screen goes blank it stops after about 8 hours. Someone please help. Thank you