[MrDrMcCoy]

If it connects to another network, it's somebody else's problem. Unless of course, it has a built in webcam or microphone.

[stvltvs]

It does, at least for any media played through the device. Read up on automatic content recognition.

https://www.howtogeek.com/its-not-just-streaming-content-you...

[account42]

Its your problem if it updates itself to show ads (and of course exfiltrate whatever it can see / hear).