I just loathe the idea of having a TV that (1) is going to have a smartphone-class SoC built-in that I won't even use for anything and (2) is going to be yet another computing device I don't control.
I begrudgingly tolerate the fact that my PS4 and my phone are computers I don't control, because at least they offer functionality that's useful to me, but I draw the line at smart TVs because they aren't even useful in the first place. I'm just going to use my PS4 for everything on it anyway, but then I'll have have another device where I have to worry about software updates and shitty anti-consumer practices.
/rant