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Horizon

The £10 Million Challenge

Duration: 1 hour

on BBC Two HD

Series exploring topical scientific issues. To celebrate its 50th birthday, Horizon invites the public to play a role in tackling the greatest challenges facing science today. Show more

BBC Two HD

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.