TV quit working, something in the power supply is kicking off a circuit breaker or some form of self-protection. Rather than take it apart I think we will buy a new one. They're all smart now, I assume, and I know nothing about them. Full HD or 4K? Will it work with the existing router we have for Wi Fi? Will it work with the cable box? I heard some won't.

Trying to do a little research but thought y'all might have some insight.