Also, I'm pretty sure they do upload something recognisable because one time (2-3 years ago) I accidentally pressed the 'social' button on the remote while I was watching premier league football on Sky Sports (via a separate satellite box) and the TV started showing me relevant tweets about the match.
I'm definitely not buying a 'Smart TV' next time.
[0] https://gist.github.com/peteryates/b44b70d19ccd52f62d66cdd4b...
Would have to know all of the domains that the TV connects through, that they're in one of pihole's blocklists, and the TV actually respects the DNS setting entirely and doesn't have any hard coded IP addresses
>What prevents Samsung from registering new meaningless-sounding DNS names and continually pushing out TV software updates peddling “Security and bugfix” release notes?
Nothing.
The real solution is to not connect any smart devices (especially stuff like TVs) to the internet as most are inherently untrustworthy.
Maybe a whitelisting system on a firewall would be more appropriate than a blacklisting system on something like pihole.