Source? On Android with Google Play Services, which almost always applies to Android TV as they’re essentially the same OS, there are no UI toggles to turn off the spying. You can check this using a DNS proxy, for instance, and viewing the log after blocking Google domains using such a proxy might prove quite alarming. Android devices even with location and search tracking disabled contact Google every several minutes.
If you turn these off, particularly "Web & app history", your TV (and all other Google devices) will obey the settings if it is logged into that Google account.
It will still be contacting Google's servers, but it won't be recording anything.
Or are they just not showing you, via your UI, what they're collecting into their data pools anymore?
I also trust Google to have fewer glaring security issues than Samsung.