Just replying if anyone stumbles across this in future searches.

Hisense warranty was great to deal with. They didn't reply to my initial e-mail, but after one quick phone call, and me sending a screenshot of my receipt over, they scheduled a repair appt. I called on Monday, had a guy come out Friday, switched the board, and we are all good.

In a day where it's hard to get anything done, this was very painless.