Is there any privacy-respecting way to stream video to a "Smart" TV?

Got a "Smart" TV recently, because there's no other choice if you want a display that is new, big, 4k, and cheap, AFAICT.

Naturally, I won't be using any of the "Smart" junk. All of it requires some form of online account/sign-in/agreeing to surrender one's personal data for marketing purposes.

All of the Android TV/streaming box things seem to require signing in with a Google account, at minimum. I don't see why I should have to do that. I can …

account big data display personal personal data privacy sign smart stream video