Roku is a pioneer in most of this crap but don't be fooled to think that only cheap stuff is gonna have these and that somehow you are safe if you spend a lot on your TV. as it turns out high end and average TV producers would also like to squeeze the tiniest profit margins out of their consumers and if they could get away with it they would do the same.
in fact nowadays most TVs regardless of price are actually collecting and selling your data and in the best case it's an opt out option in the worst possible place in the menu.