It sounds like science fiction but many new TVs can watch you - telling advertisers your favourite shows or even filming you on the sofa. And there's no off switch!
By Guy Adams
PUBLISHED: 01:37, 26 November 2013 | UPDATED: 09:37, 26 November 2013
Read more: http://www.dailymail.co.uk/sciencetech/ ... z2lwtmHQ00