I fear the same but made sure I block basically everything at the network level. First thing I do is hook the tv to the network and black hole its mac.

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dreamcompiler an hour ago | parent [-]

Or open up the TV and disable its wifi hardware.

	▲	rationalist 26 minutes ago \| parent [-]
		That is the only solution, otherwise there is no guarantee that someone just won't connect the TV to their phone's hotspot.