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Streaming high definition TV worried people like the Internet's inventor Tim Berners Lee in 2006, because a two-tier web would give priority to people who pay more. "For the sake of creativity, for the sake of the diversity of the world, for the sake of democracy and the flourishing of ideas" it should be available to everyone."

This clip is taken from the programme Digital Planet which was first broadcast in May 2006.

Picture: Television and remote control, Credit: Thinkstock