Katty Kay in Washington and Christian Fraser in London return to report on the events that are shaping the world.
Documentary in which fashion historian Amber Butchart unravels the story of the Huguenot silk weavers of Spitalfields. Show more
Documentary revealing the secret story of how two men hacked into Hitler's personal super-code machine. Their break turned the Battle of Kursk and powered the D-Day landings. Show more
A revealing documentary looking at the abdication crisis of 1936 through the eyes of the two women at its very heart, in a series of dramatised monologues set in 1967. Show more
Castles: Britain's Fortified History
Episode 1: Instruments of Invasion
58 minutes
on BBC FourAvailable for 16 days
Sam Willis shows how the castle arrived as an instrument of invasion with the Normans but became a weapon with which unruly barons challenged the Crown. Show more
Documentary series celebrating Britain's motorways. This first part includes interviews with the engineers and builders who designed and created the first motorway. Show more
Clydebuilt: The Ships That Made the Commonwealth
Episode 1: Cutty Sark
1 hour
on BBC FourAvailable for years
Documentary series in which David Hayman explores the stories of four ships built on the river Clyde. This first programme features the story of the Cutty Sark. Show more
Documentary about the Victorian botanical artist Marianne North, who rejected marriage and social convention for a pioneering life of conservation and adventure. Show more
Documentary revealing the secret story of how two men hacked into Hitler's personal super-code machine. Their break turned the Battle of Kursk and powered the D-Day landings. Show more
A revealing documentary looking at the abdication crisis of 1936 through the eyes of the two women at its very heart, in a series of dramatised monologues set in 1967. Show more
