1 hour, 28 minutes
Dan Snow uses satellite technology to reveal the secrets of the Roman Empire and identify lost cities, amphitheatres and forts. Show more
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The Truth About...
Episode 1: Sugar
1 hour
First broadcast: on BBC One HDLatest broadcast: on BBC One Wales
Documentary. Journalist Fiona Phillips is on a mission to find out the truth behind the recent headlines on sugar. Show more
Tough Guy or Chicken?
Episode 2: Siberia
1 hour
Five adventurers take on deadly creatures in hostile places. In the Siberian arctic they attempt to become Evenki reindeer herders and must guard the herd from wolves. Show more
Documentary looking at the perception of AI from 1964 to the present day. Can we be optimistic about all that AI can deliver - or fearful of its ability to control our lives? Show more
Topical science series. Iain Stewart investigates a controversial energy rush for the natural gas found deep underground, sometimes right under the places people live in. Show more
Two-part documentary following a team of scientists as they explore the earth's atmosphere, travelling in an airship. The expedition begins with an examination of clouds. Show more
58 minutes
Continuing their journey across the USA in one of the world's largest airships, the scientists explore how the atmosphere changes with altitude. Show more
1 hour, 30 minutes
Materialist scientist Professor Mark Miodownik challenges two-Michelin-star chef Marcus Wareing to the ultimate cookery competition. Is cooking a science or an art? Show more