No thanks, I prefer owning my media in a way that corporations can't just take it away whenever they feel like and where I can use (open source) players of my choosing.
You have 3 replies all saying the same thing, install a ATV...
But the replies are missing the point that most people aren't techies and won't go do this. They go to big box store, buy the tv, ask if it has netflix, done.
You need to hook something up to a network, and another device would have similar risks.
Setting up a sandboxed VPC or auditing traffic is beyond the means of the average TV owner.