It's the final episode, and Katie's looking to the future. The internet, the World Wide Web and Wikipedia are built on wonderful ideals of openness and not-for-profit knowledge for all. But they're not owned by anybody, and those ideals are being attacked. So Katie's asking: where is this all headed? And at the centre of it all...can Wikipedia survive?

The clip used in the episode is from Wikimedia Commons and is published under a Creative Commons license. No changes were made. Tim Berners-Lee changed the world 25 years ago (cc-by-sa-3.0, author: BBC).

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