Food writer Nigel Slater charts the origins of British sweets and chocolates from medicinal, medieval boiled sweets to the chocolate bars that line the supermarket shelves today. Show more

Documentary series about Britain's motorways. This final episode explores how people questioned the promises made by the motorways and began to protest. Show more

Series exploring topical scientific issues. A look at how new planets being discovered are forcing scientists to rewrite the history of our own solar system. Show more

The team have been granted rare access to the Vatican and its observatory, the Specola Vaticana, where they explore its rich history and contemporary cutting-edge science. Show more

Four British astronomers celebrate 50 years of work and friendship by going on a road trip through the southwestern United States to revisit some great observatories. Show more

Brian Cox uses the BBC archive to examine the story of man's relationship with the moon, from James Burke testing out Nasa equipment to Neil Armstrong's giant leap for mankind. Show more

Nature documentary looking at a phenomenon which occurs each winter, when a mighty army of predators hunt down the billions of sardines along the South African coast. Show more

Revealing the secrets of the world's biggest machines. Tom Wrigglesworth and Rob Bell climb on board a massive North Sea ferry as it undergoes a huge overhaul. Show more

Four British astronomers celebrate 50 years of work and friendship by going on a road trip through the southwestern United States to revisit some great observatories. Show more