Tesco CEO Philip Clarke on media, ecommerce and big data – video

The launches of the Hudl tablet, Clubcard TV and the growth of Blinkbox have cemented Tesco as a force to be reckoned with in digital media and technology. In this presentation and interview on stage at the Guardian's Changing Media Summit 2014, Tesco group chief executive Philip Clarke discusses the opportunities that exist at the intersection of media, ecommerce and big data