It is tinfoil hats time, at least for LG tvs.
Also: the US intelligence agencies used Echelon ages ago to monitor what vast swaths of innocent people were up to. I think it's sensible to presume they've got their hooks into these devices too.
A technical solution would presumably spoof the spaff but with E2EE and DoH is it possible? So then what, hacking firmware? I guess then TVs get a hard lifespan limit.