It's a kind of hackey way of handling this, but what I do is open up the TVs and removing whatever components are required for the WiFi to work.
Sometimes you can just remove the network card easily, but usually the easiest thing to do is find and break the antenna. It's inelegant, and of course the smart features are still there, but it at least reduces or eliminates the tracking crap.
Sometimes you can just remove the network card easily, but usually the easiest thing to do is find and break the antenna. It's inelegant, and of course the smart features are still there, but it at least reduces or eliminates the tracking crap.