Media playback is unsupported on your device

TechCrunch in London: The battle to be noticed

There has been a lot of disruption in London this week - not traffic jams, but technology disruption.

It is an annual event called "TechCrunch Disrupt" and it features ambitious entrepreneurs talking about their start-ups and their plans to conquer all.

Newsnight's David Grossman went down to investigate.

  • 23 Oct 2014
Go to next video: Why Chinese flock to a Brighton chippy