Dog bark and baby crying detection are advertised features for SmartThings integrations. Door bell and door knocking are also included, this is surfaced directly if you hook the TV or sound bar into SmartThings.
Samsung was the single brand reviewed which actually stopped sending data after the user told it to do so.
Don't buy LG TVs.
We clearly need a whole new privacy framework where everything is optional and opt-in, plus open software to monitor this compliance.
I hate 2 things about my samsung tv's (I have 4 only samsung): the simplistic remote and ads on home screen. Even with custom dns sometimes they get through.