It's not worth buying any of these 'Smart' TVs. I don't know whether it is a shoddy developer experience provided by the likes of Samsung / Vizeo etc or if it's the developers themselves (Hulu I'm looking at you) who do not maintain their apps which are constantly bug filled. I much prefer my old dumb TV that has a Roku plugged into it. Oh yeah, and I know it's not WATCHING ME.
If you want a high end tv you don't have much choice. But also, why do you not expect your Roku / apple tv / etc to be watching you?
I suppose you could just buy a new smart TV and not inform it of its WiFi details.