Rather than trying to get a TV which doesn't have blatant spyware (when in all likelyhood, they all do, or will get one in a software update), I would suggest solving the problem the other way around - get a TV you know you can disable that functionality in. Trusting the manufacturer is a recipe for disaster.

I stripped out the bluetooth+wifi module from my TV and keep it disconnected from ethernet. Now it doesn't matter what it tries to collect, it can't send it anywhere.

SOFTWARE SWITCHES CAN NEVER BE TRUSTED!