BBC Four HD

Mayuyama restores a magnificent Chinese vase bearing a mysterious inscription.

The story of how Britain's phone network was built. Incredibly, there was once a time when phones weren't pocket-sized wireless devices, but bulky objects wired into homes and workplaces. Over the course of 100 years, engineers rolled out a communications network that joined up...

This is the story of the men who built the canals, the navigators or `navvies'. They represented an `army' of hard physical men who were capable of enduring tough labour for long hours. Many roved the countryside looking for work and a better deal. They gained a reputation as...

Anne has grown into a real beauty. She is dazzling, and the king is caught in the glare. Her family play the long game to catch a king.

Paul Rose has as adrenaline overdose on his way to Coniston, beginning with entering a retro cycling event on a penny farthing before joining the mountain bikers of Grizedale Forest. Paul also relives the final moments of Donald Campbell in his attempt to break the world water...

Dr Helen Czerski examines the extraordinary messages sound waves carry, and how they help us understand the world around us. Visiting a hidden location buried beneath the hills of Scotland, Helen experiences some of the most extreme acoustics in the world. She discovers how...

BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.

BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.

BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.

BBC FOUR is the BBC channel for people who want more. More depth, more range, more to stimulate the mind.

Liz McIvor looks at how the nation's canal network was saved following years of neglect and finds out how Birmingham led the way in urban regeneration, turning canals and their environs from places to be avoided, to places to embrace.

Remote Eskdale is the final destination in explorer Paul Rose's trek through the Lake District. This corner of the western Lakes is off the normal tourist track, but it boasts England's highest mountain. Before heading for the tough Lakeland summit of Scafell Pike, Paul meets...

In 2017, a routine archaeological dig discovered human remains on a housing development. Once the bones are washed back at HQ, the team find a nail through the heel of one of the individuals, a discovery that may be a very rare Roman crucifixion.

Chris and Xand explore the latest understanding of how humans grow. They uncover the secret reason why childhood is longer for humans than for any other creature on Earth and reveal the communities of microbes that humans cultivate in their lives.

Part 3/6. The Vincy family faces financial problems; Casaubon has a heart attack.