To be honest, looking at the PiHole logs the TV itself hasn't tried to do much of anything. The apps on my streaming device (namely Netflix before I uninstalled it) tried, but the PiHole always caught it.
And I suppose there’s the even-creeper Amazon Sidewalk: https://www.amazon.com/gp/help/customer/display.html?nodeId=...
I hate sounding like I’m wearing a foil hat but there are a lot of easy ways to get around trying to neuter smart devices now.