As President Trump takes office, Katty Kay in Washington and Christian Fraser in London report on the events that are shaping our world.
Martha Kearney retraces the footsteps of George Victor Du Noyer. Martha travels north, taking in Dunluce Castle, Mussenden Temple and Kearney Point, before visiting Dunmoe. Show more
Motoring enthusiasts tell the story of Britain's racing legends. Paul Hollywood meets John Surtees - the only man to win world championships with both bike and car. Show more
In the early 80s Tommy Byrne was the world's greatest driver, the motor racing equivalent of George Best and Muhammad Ali. His rise was meteoric and his fall spectacular. Show more
A Storyville documentary: an extraordinary and harrowing portrait of life in solitary confinement - and a unique document of a radical and risky experiment to reform a prison. Show more
The team explores the coastal waters of the Indian Ocean to discover what happens when this powerful ocean collides with the edge of a continent. Show more
Michael Mosley investigates Porton Down, Britain's most secretive and controversial military research base. He comes face to face with chemical and biological weapons old and new. Show more
Science series. Horizon explores why placebos work, despite containing no active ingredient, and explains how we could all benefit from their hidden power. Show more
A Storyville documentary: an extraordinary and harrowing portrait of life in solitary confinement - and a unique document of a radical and risky experiment to reform a prison. Show more
