If you're concerned about that do not give internet to your tv and use any kind of tv box instead (shield tv, apple tv, etc).
I wouldn't use Apple TV, Shield or other proprietary black boxes if you want a private setup. Linux on a mini-PC with Plasma Bigscreen, your own over-the-air antenna for local TV, VacuumTube for YT, and the high seas for other content.
with things like amazon's sidewalk you might not have any choice https://en.wikipedia.org/wiki/Amazon_Sidewalk