[comprev]

My 'smart' TV has no internet connection configured as I use a Chromecast for streaming services and beaming local content.

[jasomill]

Likewise (s/Chromecast/Mac Pro/), but mine (LG) has no apparent means to disable Wi-Fi Direct, so it's still potentially vulnerable to local wireless exploits.

[Dahoon]

That you know of.. Alexa auto-connects to other Alexa networks (like your neighbors). Some TVs have Alexa built-in. Bingo, telemetry.

[Yeri]

That’s Alexa hardware using something like LORAWAN or zigbee or something. Bandwidth is low.

I doubt that (at this stage) TVs have something similar builtin. When they come with Alexa/GHome/... it’s usually the software and not an actual Alexa device built in.

[wasmitnetzen]

Amazon just announced Sidewalk, where their Echo/Ring devices share their internet connection. If it's not happening yet, it will be soon.