Then, someone's going to say that TVs could be automatically connecting to open Wi-Fi networks. I don't think that's a thing any more. I haven't seen any open Wi-Fi networks around me in a long time.
I'd love for a TV to include a 4G/5G connection that they pay for; it'll be hacked for free Internet before the first production run leaves the store shelves.
Open up the TV and remove the WiFi board.