My 42 inch LG plasma t.v. keeps shutting itself off every few minutes. When I unplug it, and plug it back to the outlet, the redlight power button blinks and I can turn it on manually. 'sometimes' this works. Not all times but its a way to get it on but it doesn't stay on but for a little bit. When I Change the input for my ps3 it stays on at all times so its Confusing me a bit. I go to switch it back to cable and it cuts off again. Maybe its in the cable I'm not completely sure...I know its not the power cord. Thought there could be a short but I went and bought a new one just to try it it still did it. Looked to see if it was on any sleep mode and it wasn't. Can't understand why when I change the input to my game it stays on at all times. Well it started doing it when my cable box went out and had to unhook it and use regular cable. Coincidence maybe? Not sure. Need opinions quick before I go insane and throw my TV out the window if I have to unplug and re-plug one more time! Lol!