Comment by jasinjames

If you have a "smart" TV you'd like to avoid connecting to the internet for reasons like this, you can try disconnecting the wireless module entirely. I had a Sony Bravia TV I didn't trust, and after popping off the back I disconnected the wireless module's ribbon cable. The android-TV OS handled it gracefully, and now I don't have to worry about it attempting to smuggle data through any other WLANs in my apartment building.