I've got an older model but never had the turning off and on problem before. Was prepared for it being time for new TV but did some searching first. Sure enough, one of the batteries had exploded in one of the remotes. Changed the batteries, same problem. Took batteries out of magic eye remote to see if that would make TV work - nothing doing, put batteries back. Tried cooling TV down, dusting the back, checked the fuse in the plug. Nothing. Then decided to change the batteries in the magic eye remote - and that worked! So problem has come with a recent software update but at least I know now. Just change all the batteries!