My advice: connect it to a restricted network, where it can successfully ping home and assert internet connectivity, but everything else (except maybe updates o

My advice: connect it to a restricted network, where it can successfully ping home and assert internet connectivity, but everything else (except maybe updates or whatever you want to allow) just fails. A better, more useful approach is to have a DNS server on the home network (something like a pi hole), where all analytics go nowhere, Youtube isn't capable of downloading ads, etc., but you can still use the smart TV features you want. IIRC some TVs have internal DNS servers and only use those, so an ARP spoofing may be also needed.