Additionally, if your smart TV requires an internet connection in order to be set up in the first place, use the hotspot on your phone with a new SSID, and set it up, and then change the SSID on your phone.
After that, it should work without an internet connection, and it’ll spend all of its time attempting to connect to an internet connection that is no longer there.
It’s kind of wild to think that you could make so much money by making an open-source TV ecosystem.
Or if making money is not your thing, you could acquire so much internet clout by developing it and then publishing it online.