That’s a completely unhinged level effort for what would still ultimately boil down to speculation lmao. Smart TVs phone home frequently, semi randomly, with varying data amounts, both when used regularly and when off for months at a time, both when you’re walking and talking around it, and if you’re on vacation for two weeks. If despite all that you tried to control the environment around it you’d somehow need to… ensure absolute silence in the room that it’s in for DAYS at a time? Unless you live in the middle of the woods that’s not very likely, and even then, all it would be is guessing lmao