At least with Samsung TVs you can block them from accessing the internet after setting up the TV. Just use an Apple TV or Chromecast device after that.
I have an LG G5. I don't remember if I needed internet access to set it up, but currently I keep it offline and just use an Nvidia Shield (which is better anyway). No ACR, tracking, ads, ... in the TV itself.
By doing this you basically get a subsidized TV without paying with your data :D
By doing this you basically get a subsidized TV without paying with your data :D