Freeview boxes bought in the UK contain a special transmitting device that relay viewing habits. Several stations across the UK collate the data which is analysed at a secret facility cut into the side of a Swiss mountain ... err ok not really...
http://news.bbc.co.uk/1/hi/england/devon/4712122.stm
Fascinating nevertheless!
http://news.bbc.co.uk/1/hi/england/devon/4712122.stm
Fascinating nevertheless!
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