My TV has been turning off by itself for about 9 months, about once every couple of months unplugged it and the tv works fine. Then last night it did it twice within in 2 hours, still worked fine. Then the 3rd time it would not come back on for about 30 minutes, then it would stay on for 5 minutes, after that happened a few times I went to bed and the tv is on when I woke up this morning it was on and it has been working for about 4 hours with no problems. Dose anybody have any idea what the problem was? I called Samsung they were no help. Just wondering if I should buy a new TV or this was a isolated Issue?