This is why you buy a display panel and not a smart TV.
Like none of these TV's hooks to an Open Wifi Hotspot and abuse you.
I haven't managed to reproduce it.
Best you get is "my friend's LG TV connected to the internet even after changing his WiFI password" vaguely recalled hearsay.
Or the second order retreat-to-motte argument of "well they'll add that to the firmware overnight when ad revenues drop if enough people stop connecting to the internet".
That saves you from some potential issues but not others. My google search magic isn't working, but there was some manufacture a number of years ago who's TVs were crashing because they'd save up massive amounts of data to upload and either exhaust all their memory or fill up the disk because it never connected online.
Also, if you live in a household you have to make sure every other person behind that TV doesn't connect it to the net at some point for some reason.
> Also, if you live in a household you have to make sure every other person behind that TV doesn't connect it to the net at some point for some reason
You could always ban it from your network at the router.