This thread feels very...Hacker News Bubble? Why is everyone so confused that smart TVs are popular? Being able to just turn on your TV and open Netflix without messing around with inputs/other devices is a huge benefit for non-technological people. And it probably costs <$50 for the manufacturer to include whatever chip is running linux in the TV, its a no-brainer.
(I have a smart tv but honestly I don't want it anymore. I'm creeped out by the whole idea of it, and I don't like how it's always updating, or complains with blinking lights when it's not on the internet. No ads though. For now. It's kinda hard to find a dumb TV but I may just go with either a large-ish computer monitor or a projector.)