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> Very likely ok until people also start getting arrested for going to pee during tv comercials

Ambient light sensors can probably detect a person walking past.

Forget light sensors, think facial recognition on the camera that is in your smart TV for... I don't know, videoconferencing, I guess? ;).

Microsoft already has a patent on using in-home censors to set fees based on how many people are watching a TV. I'm excited to see us reinvent TV taxes as a shady, privacy-destroying rent we pay to tech companies...

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=H...

Plus now they get to spy on us using tiny little cameras !

I think they even had this as a production ready feature in the Xbox One at one time (before launch, but at a very late stage), but were surprised that users were a bit miffed about it.

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