> Best solution is to "air gap" your TV by not connecting it your wifi or ethernet.
How long will it be before TVs embed a cellular modem with manufacturer-paid service to keep the smart features connected? “No setup, works straight out of the box” has to have at least some marketing value, after all.
For the walls and ceiling, prime with 2-3 coats of paint that contains carbon black and graphite. It's black, so several finish coats will be necessary. For the windows, use aluminum screening. That also works well on floors, under engineered wood flooring. Nylon plated with nickel and silver makes nice drapes.
This might work in the US, units sold in the EU would be litigated out of production. Who knows, maybe we'll see a homebrew market for EU-built apps for US TV's.