This is repeated every time this topic comes up, but so far it's just a conspiracy theory. An urban legend. An old wives' tale. Are there any documented cases of this happening?
Agree that it should be observed before assumed. Would a software-defined radio and a packet capturing mechanism be sufficient?
With TV makers having recently destroyed trust and there not being a good way for consumers to force trust it makes little difference whether they are doing it or not.
If you can't tell whether your disconnected TV is spying on you but you know that you cannot trust it, it's better to treat it as compromised.
Amazon Sidewalk is a real life product that offers this over bluetooth
probably, but I'll let gp answer. But I want guarantees that they don't do that, until them I'll consider the fact that if they can and it's profitable they will do it
Some do this (Samsung), but the more common tactic is to throw constant nags up if the telemetry is not being sent to the manufacturer.
I did my research and bought one that does not do this (2025 TCL), but, if it turned out that it did, I'd have shamelessly returned it. I'd also have issued a chargeback if the store gave me any crap.
Even with all that, if you install firmware updates over the network, then disconnect WiFi, the TV becomes unusable until you factory reset it. (I did this because its EDID is corrupted, and I have to override it with a linux cmdline. The update did not help.)