I recently took my brand new stupid fucking tv off the grid. I use Apple TV so not a big deal with the ads and shit but the damn thing forced an update mid movie, reset, and black screened. Couldn’t get it back on and went to bed, figured I’d deal with it in the morning. Luckily it worked the next day after that no more internet for you.
If you think that's bad, my Denon receiver had to update itself which for some reason fails 100% of the time when using wifi so I had to find the longest ethernet cable I have to connect into the back (or disconnect 20+ wires from the back to move it closer to the network switch) so that it could finish downloading the firmware and complete the update before it would start working again.