My TV turns off about 5 minutes after being on and then again about 3 minutes after I turn it back on. When I turn it back on, sometimes it will stay on, other times it will immediately turn off again and I will have to push the power button 3 or 4 times to get it to stay on. So far I have tried vacuuming out the back of the TV thinking that dust build up might be causing it to over heat. I've taken the batteries out of the remote, to see if it was sending the TV a false power signal. And I have used the power button on the TV to make sure that it wasn't sticking. So far nothing has worked. Any advice? Thank you

Televison & Video - Maxent - MX-42XM11 Television