After a good nights sleep I think I want to revise this (can't edit).
I think it's prudent not to even buy a Smart TV and use it in "dumb mode". If we do this, we are not voting with our wallet. I'm not sure how likely we would be to have a large enough effect numbers wise but one can try. If we don't try, we've already lost.
You're still voting with your wallet to the effect of the TV not being able to serve the ads that it otherwise would.
But anyway, ever since content consumption became prominent on mobile smart devices (smartphones, tablets), this battle is already lost - the TVs are merely playing catch-up with the rest of the industry.
I think it's prudent not to even buy a Smart TV and use it in "dumb mode". If we do this, we are not voting with our wallet. I'm not sure how likely we would be to have a large enough effect numbers wise but one can try. If we don't try, we've already lost.