FWIW, I've never seen that come up on the five or six TCLs that I've owned over the last decade. I have AppleTVs connected to all of them and never connect them to the internet. So far, so good.

I don't recall off the top of my head. It was covered in one of Louis Rossmann's rants so you might find information on the consumer rights wiki he talks about.

Samsung TVs certainly do. A massive PITA.