Simon Schama examines some of the daunting challenges facing Barack Obama, both on the world stage and at home

International investigative documentary series. It has been quite a year for America's first black president. Promising change and appealing for unity, Barack Obama won his way into two wars and the worst recession since the 1930s

The film hints at the global consequences of CCD continuing unchecked: the possibility that the crops, fruit and flowers that humanity rely will not be pollinated and will die out.

In 1971, leading Vietnam War strategist Daniel Ellsberg concluded that the war was based on decades of lies. He leaked 7,000 pages of top-secret documents to the New York Times, a daring act of conscience that led directly to Watergate, President Nixon's resignation and the end of the Vietnam War.

Could you have come up with Einstein\'s theory of relativity? If not - why not?

Mathematicians have discovered there are infinitely many infinities, each one infinitely bigger than the last. And if the universe goes on forever, the consequences are even more bizarre. In an infinite universe, there are infinitely many copies of the Earth and infinitely many copies of you. Older than time, bigger than the universe and stranger than fiction. This is the story of infinity.

Wildlife documentary. How does a chimpanzee see the world? A research project at Edinburgh Zoo is designed to answer just that question in an innovative new way - by training chimps to use video touch screens and giving them a special chimp-proof camera. How will they react to tools which in evolutionary terms are a few million years ahead of them?

Jonathan Scott narrates the extraordinary story of the leopard - the one big cat that still survives across half the world while tigers, cheetahs and lions are all struggling. By following the lives of leopard mothers and their cubs in East Africa, the film investigates what it is about the natural history of these cats that makes them born survivors. Perhaps the most extraordinary revelation is that leopards are living undercover on farms and even in cities across Africa and Asia.

On an island where reggae is considered the voice of the people and an outlet for survival, Rise Up Reggae Star follows three aspiring artists who seek to 'rise up' from obscurity for their chance at success.

Gary Lineker travels to Buenos Aires to spend the weekend with Diego Maradona.

Series of concerts featuring musicians from around the world at LSO St Luke\'s in London\'s East End. The late James Brown, aka the Godfather of Soul, is joined by a 19-piece band including two drummers, three backing vocalists, two dancers in hot pants and a brass section.

Bruce Springsteen playing Glastonbury Festival.

This stunningly beautiful film reveals the unique wildlife of the Scottish Highlands, seen through the eyes of film-maker Fergus Beeley. Based for a year at Loch Maree and the surrounding hills in Scotland\'s far north-west, Beeley presents his personal view of the shy animals whose lives are ruled by the rains. He follows the fortunes of rare black-throated divers and white-tailed sea eagles.

Sally Ashby's intriguing First Cut film lifts the lid on the exclusive world of super rich Russians who want an English public school education for their children.

Natural World investigates the vital bond between animal mothers and their babies. The more we study animals, the more we realise just how emotional they are; all mothers are faced with tough choices as they struggle to bring up babies in a difficult and dangerous world, constantly balancing their own needs with those of their infants.

Horizon follows the emotional journey of three young people with currently untreatable conditions to see if, within their lifetime, they can be cured.

Anish Kapoor is one of the most influential sculptors of his generation, known for works of staggering complexity and scale. He now faces his biggest challenge yet as the first living British artist to have a solo show occupying the entire Royal Academy gallery. His response is a series of audacious installations.

Cutting Edge follows new recruits to Westminster\'s parking enforcement operation as they join the army of traffic wardens patrolling London\'s streets

A hard-hitting documentary following an extraordinary six months in the life of Darcus Howe as he attempts to raise awareness of prostate cancer, a disease which affects one in four black men.

On June 20th, a young Iranian woman was shot in the street in Tehran. The video of her death, filmed on a mobile phone, was seen by millions around the world.

Dispatches investigates the elusive Russian oligarchs who have been trying to buy up our football teams, newspapers and car companies.

lan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing is as it seems.

Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question - what was there before the Big Bang?

Born and raised in Iran, film-maker Nahid Persson returns there to meet a 50-year-old man with four wives, twenty children - and an irascible, foul-mouthed mother

Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming every second of his son\'s first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible.

In this edition of Dispatches, reporter Jane Moore reveals how nutritious the nation\'s breakfasts really are and the marketing techniques employed by this lucrative industry.

Manta rays are one of the most intelligent creatures in the ocean and, at up to seven metres long, one of the largest. Yet despite their size and curious nature, almost nothing is known about their lives.

Wildlife documentary. In the forests of northern Minnesota, biologist Lynn Rogers uses food to gain the trust of wild black bears, a controversial technique developed over his own forty-year journey from fear to fascination. Following the fortunes of mother bear June and her three cubs over a year, the film reveals an intimate portrait of the lives of black bears.

In this documentary from the Race: Science's Last Taboo season, Rageh Omaar explodes myths about race and IQ and reveals what he thinks are important lessons for society.

An iceberg may have sunk the Titanic, but this documentary argues that it was actually a long chain of misjudgements, human errors and misfortunes that led to this maritime catastrophe