I just saw a TV labeled, "Android TV", and was curious. Wow. I won't be going forward and will probably just pay up for a commercial grade type set, or some combination of monitor / tuner.
So far, I've been lucky. After finally moving off of a CRT for primary TV viewing, I picked up a smart plasma from Samsung. Never put it online, and that TV is awesome! Gonna miss it one day. Looks like OLED is going to deliver nicely, and that's what I'm looking at in the future.
Did pick up two "Hi Sense" ROKU sets, and they are remarkably clean. Apparently, there are sets out there sans the AD spamming, and or I bought in just prior to this all very seriously escalating.
Roku gets you with ad targeting for ad supported programming. So, things with commercial breaks play ads based on what you watched on other channels. It's remarkably good at joining web browsing sessions from cookie-free web browsing sessions to my roku. I'm not sure what mechanism they use to join the accounts to web browsing sessions.