Reminder: you can connect it to your network, but block it from the internet at the router. That way you can still use Airplay/Chromecast.

I have an LG. Great OLED panel. It's never seen the internet.

No, you can't. They can just spoof their MAC address and be freed.

Ah yes. Using that OTA update it got via AM radio.

or from your neighbor's open WiFi?