I sincerely hate everything the "tech" industry has done to society over the past 10 years or so.
$1000 TV, $5 SoC from 3 years ago. The last Android update they did was to add more advertising to it!
blihp, what I would say if you have an Android TV is see if you can install your own SSL certificates before you connect it. Lots of services are using SSL so you may only be able to pull netflow-style data from it. Also worth seeing if adb is listening on the network or on one of the USB ports.
Mine isn't Android TV (though I suppose it's possible it's running some Android variant rather than just a custom Linux build behind the scenes... I'll check that out)... it's a Roku/Netflix TV. So my plan is to put it behind an OpenWRT router and at the very least isolate and monitor the traffic if I'm not easily able to MITM it. If I find anything interesting I'll probably throw up a YouTube video so Google can further build up its profile about me while I attempt to figure out how someone else is attempting to build up a profile about me. The game of cat and mouse continues... (not sure which I am most days)
Same with a car: don't let it connect via wifi. If it has a cell modem, cancel the service plan. In the unlikely event that there's no plan to cancel, 'mod' it with wire cutters and/or a dremel. (of course this assumes that you own the vehicle rather than lease it)