My Sony KDL40EX703 is 8 months old and has started turning itself off then back on, I was watching the apprentice on BBC HD ( built in freeview hd) when no signal came up on the screen the TV then switched off and kept rebooting for around 10 to 15 mins, I tried to use the remote but no response, I even switched it off at the mains still no response. After about 10 mins it switched on and is back to normal. My wife is calling the shop today to try and sort it out. has anyone else come across this problem.