had this thing for a little over 1 year... it's now started to turn itself off on it's own. i've searched...couldn't find anyone with this exact problem. i can have it on for maybe 5 mins or an hour...it turns off. i turn it back on, it turns itself back off. i can't even watch a 30 minute show.
Poltergeists! Yikes! How absolutely aggravating! Call 1-800 SAMSUNG prompts 2, 1, 3, 1. They have been known to cover repairs that are not even as close to the warranty expiration as yours and extend the warranty further for you. Had you registered online you would have received an additional three months anyway. Just don't take the first few I'm sorry's! They have three levels of customer service. I'm sure they will take care of you!
this happened to me before. did u check the back panel? make sure u screw the lamp cover tightly. what i do is i unscrew it and re-screw it tightly. hope this helps!