Is this news to people? A decade ago, as an intern at Google I was chatting with another intern about this. She described exactly this sort of system. Google h

Is this news to people? A decade ago, as an intern at Google I was chatting with another intern about this. She described exactly this sort of system. Google had bought up the ad rights to an entire cable network across a few states in return for the data on what channel each TV was on, and if it was on or off. Based on that, they built profiles of how many people lived in each house, what their likely age/demographics were, what times they watched TV, etc, and targeted ads so that you and your neighbor watching the same channel got different ads. She wasn't speaking hypothetically. This was the team she worked on.