>IoT mesh networking

I'll bet there is already a manufacturer whose TVs can all communicate intratelevisually (non-standard proprietary frequencies) – and then, if even one of them is online... they're all relaying within their private intra-TV spyware meshnets to their various relays.

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In unrelated news, my 2012 Sony Bravia is still fantastic, even if not for (4K) high-refresh games (the image quality remains fantastic for casual usage).