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Stopping the smart TV from being used against you.
(www.s-config.com)
This is a most excellent place for technology news and articles.
Removing the Bluetooth/wifi module maybe more difficult. For cost cutting reasons, these controllers are built into the logic boards now, but disconnecting the bluetooth/wifi antennas inside the TV is trivially easy. They are simple push-on mechanical connectors. No wire cutting needed. Gently grab the gold/silver metal part pull straight up from the board.
I just googled "lcd TV logic board" and this was one of the first images I found. I put a red square around the antenna connectors.