Alan Titchmarsh travels Britain to discover why our islands are so diverse, beautiful and extreme.

From Jurassic Oxford to Scotland's Himalayas, Alan explores the secret history hidden in the rocks beneath our feet. He discovers how Scotland and England drifted together from their original locations, near the Equator and the South Pole, and finds fossils which reveal that the Yorkshire Dales was once a sea with coral reefs.

Alan gets under the skin of the much misunderstood Neanderthal man, examines relics from the past and discovers that an ice sheet covering most of Britain stopped at London's Finchley Road tube station..

Nick Crane and the team take a fascinating journey around the coast of the United Kingdom, uncovering stories that have made us the island nation we are today.

The nation's love affair with the coast will be reawakened for this entertaining and ambitious exploration of the entire UK coastline. Across 13 programmes Coast celebrates the unique character of the UK's coastal communities, exploring a wealth of fascinating human stories through a mixture of expert comment, contemporary storytelling and computer-generated images. This is the coast as never seen before.

The South Wales coast, by the Second Severn Bridge, has the second highest tidal range in the world, at around 14.5 metres (the highest is the Bay of Fundy, located off the northern coast of Maine, USA). It's also home to an extraordinary tidal phenomenon - the Severn Bore.

The coast of North West England covers some classic industrial landscapes and playgrounds, and a dangerous world of shifting sands.

Scotland's west coast has the most jagged and dramatic coastline in Great Britain. It's only 300 miles as the seagull flies, but once you add in the dozens of islands anchored off this rugged coastline it is thousands of miles.

This is a coast of two halves, divided by the broad Humber. We start on the craggy grandeur of the Yorkshire coast and finish by wading through the vast salt marshes and mudflats of the Wash.

Every beach, bay and cliff edge along this stretch of coast has a story to tell of people who struggled with changing sea levels, the perils of flooding, subsidence and erosion. Whole towns have been lost to the sea, houses teeter on cliff tops... the very land is crumbling away.

In this programme we look back at some of the highlights of our journey, exploring the future of our coast and what it'll mean for us as an island nation.

There's nothing else like it. Chris Packham reveals the epic, 4.5-billion-year story of our home - from its dramatic creation to the arrival of human life... and whatever's next.

Explores one of the darkest periods in Earth’s history: the worst mass extinction the planet has ever seen, when as much as 90% of all species died.

A look at how the giant supercontinent Rodinia broke up 800 million years ago. Earth’s tectonic forces ripped the land apart, kicking off a series of events that sent temperatures plummeting.

Chris Packham tells the miraculous story of how plant life turned the Earth from a barren rock into a vibrant green world.

When the Earth first formed from clouds of dust and gas, it was devoid of an atmosphere. But as the young planet is pummelled by asteroids, a period of extraordinary upheaval begins.

How dramatic twists in Earth’s story enabled humans to go from being part of nature to controlling it, and what can be learnt from this tale before it’s too late.

Aubrey Manning explores our understanding of the planet.

Aubrey Manning explores a revolution in our understanding of the planet. He starts out by trying to date the Earth, aided by surviving fragments of early Earth found in Greenland and South Africa's Barbertan Mountains. First in the series

Aubrey Manning follows the research submarine "Alvin" on a dive to the world's longest mountain range. Second in the series

Aubrey Manning discovers Pacific seawater in a Bolivian volcano 6,000m above sea level. Third in the series

Aubrey Manning investigates volcanic activity worldwide. Fourth in the series

Aubrey Manning explains how scientists have developed new theories concerning mountain formation, by studying the Himalayas at the top of the Indian subcontinent. Fifth in the series

Aubrey Manning traces the turbulent history of the Ice Age in a journey spanning the globe. Sixth in the series

Aubrey Manning continues his global trek from the jungles of Indonesia to the plains of Africa, and discovers how chance events in history have shaped the evolution of life on Earth. Seventh in the series

Aubrey Manning sets out to discover why the Earth is a living planet and our planetary neighbours like Mars and Venus are not. Eighth in the series

Documentary series. Dr Iain Stewart reveals the role natural forces have played in the creation of the planet Earth, beginning with volcanoes

Revealing the extraordinary animals, astonishing landscapes and remarkable people who live alongside the Amazon, Mississippi and Nile.

Documentary revealing the animals, landscapes and people of the greatest river on Earth. From transparent lagoons to pink dolphins, the Amazon hides spectacular secrets.

A look at the astonishing wildlife, landscapes and people of the Nile. From elephants and leopards to ancient wonders, its great length is a lifeline for wildlife and cultures.