Tv turns on and off

[user10D4ix2SKf]

My 3 year old tv keeps turning on and off. I am reading everybody elses comments and trying every recommendation, but nothing is working. There's a problem with my Samsung TV and I have no clue on how to fix it. Does anyone have any other ideas? 

[St3v3C]

that's a problem with a controller board inside the tv. needs a service call. good luck