The damages would probably only qualify for small–claims court. These cases don’t take much time to present or judge, and the evidence you need is quite straight forward. Consulting with a lawyer on the matter, if you wanted that extra assurance, wouldn’t cost much.
I consider my time for a day off work, travel to court, preparation, irritation, etc more than the value of the TV, and they probably wouldn't pay me damages for those things.
The point is that I shouldn't have to do that as an individual for every purchase.
We need a blanket rule that they can't remotely modify purchased items in a way that cannot be rolled-back by the consumer to the functionality at the time of purchase.
I'm in Australia. Although we're covered by what I consider to be pretty good consumer guarantees, you can still only demand a refund in the case of a "major problem" with the product.
I don't think simply being unhappy with it connecting outside would qualify, although IMO it should.
It depends on the retailer, but probably you won’t be able to return it for a refund. You should attempt it though, or at least be able to present the retailer’s return policy as evidence in small–claims court.