I have a National Star television.It resently started going OFF every time I switched it ON.Sometimes it takes 10 minutes or even an hour before going off.What could be the problem?

If it takes that long to go off, sounds like something is overheating and shutting down. Could be a power regulator or many other things.

Make sure none of the set's vents are blocked. If blocked vents are not the problem, you'll probably need a technician to fix it.

Daniel

Thanks!

Mite be automatic rcd breaker saying its taking too much power and next time you turn it on it works for half an hour