Right, never give a TV internet access now. That's where we are.
This means they can't surveil, brick, or change your hardware after you bought it.
So yes, then add whatever dongles to provide content. If the dongle turns bad (evil), chuck it and get a different kind. You preserve your privacy, hardware ownership rights, and freedom to choose.
One of the main aims of 5G rollout was for the eventual inclusion of sims in these devices