As President Trump takes office, Katty Kay in Washington and Christian Fraser in London report on the events that are shaping our world.

After six years Timothy Spall and his wife Shane conclude their trip around the British coast by barge, but not before a final, frightening twist off the Kent coast. Show more

Using the British Transport Films archive, Timeshift revisits Britain's railways during the era of public ownership in a corrective to the myth of the bad old days of rail. Show more

Lucy investigates how the Romanov family's grip on Russia unravelled in their final century, with the years 1825-1918 being bloody and traumatic. Show more

Bettany Hughes retraces the lives of thinkers whose ideas shaped the modern world. Drawing on expert opinion and new evidence, she looks at Karl Marx and his groundbreaking ideas. Show more

Documentary about English Egyptologist Flinders Petrie. Ancient Egypt was vandalised by tomb raiders until one Victorian maverick pioneered modern field archaeology. Show more

Michael Mosley lays bare the mysteries of the digestive system and reveals a complexity and intelligence in the human gut that science is only just beginning to uncover. Show more

Psychotherapist and agony aunt Philippa Perry presents a documentary exploring the problem page's enduring appeal, picking her way through three centuries of advice. Show more

James Fox tells the story of New York in 1951, when the likes of Jackson Pollock, Jack Kerouac, Marlon Brando and David Ogilvy helped create the world we know today. Show more

Lucy investigates how the Romanov family's grip on Russia unravelled in their final century, with the years 1825-1918 being bloody and traumatic. Show more