My wife bought a Samsung Smart TV last year.
As a display, I dig it because we used to watch movies and series in bed on her little 13" MacBook screen.
As a "Smart TV" I hate that thing - apps are freezing when we first launch them and we constantly have to suffer through software updates.
I can't see myself browsing through channels trying to find something to watch but we do enjoy on quiet night a week just enjoying a series. These days, we're into CSI NY. Everything that's related to science and forensic.
I might have turned out an entirely different person if we had such shows on TV when I grew up - scientific investigation work is fascinating.