We watch TV. TV isn’t supposed to watch us. Tell your boob tube to mind its own beeswax, assuming it has any.
If you have a smart TV, it is probably tracking everything that shows up on the screen. This technology is called Automatic Content Recognition. Its goal is to provide more relevant ads and programming suggestions.
I guess I wouldn’t mind that if the TV manufacturer gave me the set for free or paid me for the information. Alas, they did not. So I shut mine off in about two minutes.
If this sorta thing bugs you, the New York Times article How to Stop Your Smart TV From Tracking What You Watch tells you how to shut it off on various smart TVs.