As patient numbers and pressures increase, Dispatches investigates the reality of work for nurses around the country and examines whether patient care is being compromised in NHS hospitals.

Bestselling author Terry Pratchett has early onset Alzheimer's disease. And he wants Alzheimer's to be sorry that it ever caught him. In the second of this two-part series, Terry confronts his future living with the disease. He travels to America to witness first-hand how they are coping with the 'tsunami of Alzheimer's', and meets the unlikely doctor who stumbled across a controversial new treatment that he claims produces remarkable results in minutes.

Documentary series on the fall of the Iron Curtain and its legacy.How the collapse of communism affected people in the 'socialist paradise' of East Germany.

Drama charting Margaret Thatcher\'s astonishing fall from power, one of the most extraordinary stories of political assassination the world has seen. It took only eleven days for Thatcher to go from being the most powerful woman in the world to the tearful figure in the back of the car.

Former cabinet minister Michael Portillo assesses the legacy and continued influence of Margaret Thatcher on the Conservative Party.

February 2009 marks the 30th anniversary of Ayatollah Khomeini’s return to Tehran and the overthrowing of the Shah. Throughout the month, BBC World News will have news and documentary coverage assessing the impact of the revolution on modern day Iran and its relations with the rest of the world.

Explores the fraught but often surprisingly intimate history of Britain\'s relations with Iran, and asks why Iranians think that if something goes wrong in Iran then Britain must have something to do with it.

Kimberly Rivers Roberts' chilling, Oscar-nominated home video captures the ferocious force of Hurricane Katrina as it lays waste to the city of New Orleans.

Coal had powered Britain's industrial rise, with her mills and furnaces, railways and steamships depending on it. In the peak years a million men laboured in the mines, many in poor and dangerous working conditions like those contributor Dick Martin found when he began as pit boy aged 14.

This True Stories documentary unravels the tangled tale of Venezuela's oil industry, which was taken into state control by President Hugo Chavez in 2002.

Documentary telling the true story of five young British freestyle footballers' journey across the Americas to Argentina in the hope of meeting their hero, Diego Maradona, a coming-of-age road movie about a group of young men in pursuit of a lifelong dream.

Documentary telling the story of legendary Brazilian footballers Pele and Garrincha, whose emergence following Brazil's defeat at home in the 1950 World Cup Final heralded the dawn of a golden age of football for the country.

How has the Beautiful Game played into fascist ideology? BBC Four explores how the 20th century's three most prominent fascist dictators, Mussolini, Hitler and Franco, seized upon football's massive popular appeal and ruthlessly exploited it as a vehicle for propaganda.

David Attenborough asks three key questions: how and why did Darwin come up with his theory of evolution? Why do we think he was right? And why is it more important now than ever before?

When disaster strikes who lives and who dies is not purely a matter of luck. In every disaster, from those people face once in a lifetime, to those they face every day, there are things that can be done to increase the chances of getting out alive.

Why are you more likely to have a heart attack at eight o'clock in the morning or crash your car on the motorway at two o'clock in the afternoon? Can taking your medication at the right time of day really save your life? And have you ever wondered why teenagers will not get out of bed in the morning?

Horizon uncovers the secret world of our dreams. In a series of cutting-edge experiments and personal stories, we go in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream?

What is wrong with nudity? Why are people embarrassed about their bodies? How and why did they get the way they are?

Professor Brian Cox takes a global journey in search of the energy source of the future. Called nuclear fusion, it is the process that fuels the sun and every other star in the universe. Yet despite over five decades of effort, scientists have been unable to get even a single watt of fusion electricity onto the grid.

In part three of this landmark series from Norma Percy and the team that made the multi-award winning documentaries The Death of Yugoslavia and Elusive Peace: Israel and the Arabs, contributors, including Iran's President Khatami, tell the inside story of the West's continuing nuclear confrontation with Iran. The film also shows a rare moment when they worked together.

Militant Islam enjoyed its first modern triumph with the arrival in power of Ayatollah Khomeini in Iran in 1979. In this series of three programmes, key figures tell the inside story.

Every summer in the seas off Alaska humpback whales, sea lions and killer whales depend on an explosion of plant life, the plankton bloom. It tranforms these seas into the richest on Earth. But will these animals survive to enjoy the great feast?

The great flood in the Okavango turns 4,000 square miles of arid plains into a beautiful wetland. Elephant mothers guide their families on an epic trek across the harsh Kalahari Desert towards it, siphoning fresh water from stagnant pools and facing hungry lions. Hippos battle for territory, as the magical water draws in thousands of buffalo and birds, and vast clouds of dragonflies. Will the young elephant calves survive to reach this grassland paradise?

A mighty army of dolphins, sharks, whales, seals and gannets hunt down the billions of sardines along South Africa\'s east coast each winter. This is the Sardine Run: an underwater Armageddon, the greatest gathering of predators anywhere on the planet, and the most spectacular event in the world\'s oceans.

Each year more than one million wildebeest and zebra invade the Serengeti grasslands, making it a paradise for the predators that live there. But what happens when the herds move off again? We follow the moving story of one lion family\'s struggle to survive until the return of the great migration. Nature\'s Great Events tells the story of the epic trek of herds that follow the rains to fresh pastures, and the tale of the predators they leave behind.

Every year grizzly bear families in North America depend for their survival on a spectacular natural event: the return of hundreds of millions of salmon from the Pacific Ocean to the mountain streams where they were born. The salmon travel thousands of miles to spawn and then die.

The great flood in the Okavango turns 4,000 square miles of arid plains into a beautiful wetland. Elephant mothers guide their families on an epic trek across the harsh Kalahari Desert towards it, siphoning fresh water from stagnant pools and facing hungry lions. Hippos battle for territory, as the magical water draws in thousands of buffalo and birds, and vast clouds of dragonflies. Will the young elephant calves survive to reach this grassland paradise?

In the flooded forests of the Peruvian Amazon lives one of the world\'s rarest and most mysterious primates, the red-faced uakari monkey. Local people call them English monkeys because of their resemblance to sunburnt visitors. Now there is a new Englishman on the scene, Mark Bowler, a young biologist who battles through the forest in his quest to understand the monkeys\' secret lives.

Wildlife film maker Rebecca Hosking investigates how to transform her family\'s farm in Devon into a low energy farm for the future, and discovers that nature holds the key.

Botswana\'s elephants are doing very well, too well perhaps. People are worried that too many elephants will damage their fragile desert home and have suggested that up to 60,000 should be culled. Researcher Mike Chase studies ancient elephant migration routes - he has tracked them across vast deserts, desolate salt pans, and Angolan minefields. Now he thinks he has a plan that could safeguard their future.