With Japan facing the worst nuclear disaster since Chernobyl, an expert reveals the critical chain of events which led to the Fukushima crisis.

David Attenborough travels to the end of the Earth, taking viewers on an extraordinary journey across the polar regions of our planet, North and South. The Arctic and Antarctic are the greatest and least known wildernesses of all - magical ice worlds inhabited by the most bizarre and hardy creatures on Earth...

LEGENDS OF FLIGHT is a film that will not only delight and entertain the aviation enthusiast but also educate and inspired renewed interest in aviation by the traveling public, the media and young people who may ultimately aspire to a career in aviation. It dramatized the design challenged, the financial risks and the many lessons learned from a century of aviation trial and error, bringing us to the dawn of a new era of revolutionary aircraft, the 787 Dreamliner and the A380. The film will focus on the 787 to facilitate audience understanding of the dynamic design differences between the two latest aircraft technologies. Search aviation history for the ultimate flying experience with some of today's greatest pilots. See how the airplanes of the 20th century helped influence the radical new design of 21st century aircraft. See how high tech manufacturers around the world use modern technology to coordinate the design and construction of new aircraft....

Megafactories lifts the lid on how millions of your everyday products and iconic designs begin life on the assembly line.
From bottles of beer to to the latest video games to souped-up supercars, follow every cog and conveyor belt of these fascinating production processes as you enter some of the planet's most impressive factories.

A son's riveting look at a father whose life seemed straight out of a spy thriller. The secret world of a legendary CIA spymaster. Told by William Colby's son Carl, the story is at once a probing history of the CIA, a personal memoir of a family living in clandestine shadows, and an inquiry into the hard costs of a nation's most cloaked actions.

Episode 1: Creation
Runtime:00:50:01

Series exploring the wonders of the human body. Using spectacular graphics based on real images and the latest scientific research, Michael Mosley takes viewers on a voyage through the workings of the inner human universe. Travelling through the body, tiny clusters of hairs loom as large as a forest and hidden chambers of the heart rise up like a vast cathedral. To illustrate the surprising ways bodies work, the series also tells the stories of remarkable people from around the world who have pushed theirs to the absolute limit. From the moment of creation to our last breath, the series reveals the human body's ability to amaze and delight.

A son's riveting look at a father whose life seemed straight out of a spy thriller. The secret world of a legendary CIA spymaster. Told by William Colby's son Carl, the story is at once a probing history of the CIA, a personal memoir of a family living in clandestine shadows, and an inquiry into the hard costs of a nation's most cloaked actions.

In 2009, a group of passionate scientists stumbled upon fossils of the titanoboa - the biggest snake of all time. At 48 feet long and weighing well over a tonne, the snake is one of the greatest discoveries since the T-rex. The animal is a relative of modern boa constrictors and lived in the rainforest of north-east Colombia 58-60 million years ago. The spectacular palaeontological find deep in the Cerrejon coal mines in Colombia has blown the doors off a lost period in prehistory. They had unexpectedly discovered a time after the dinosaurs when the world was once again ruled by super-sized reptiles, battling it out to become the planet's top predators; among them, the gargantuan titanoboa. Using pin-sharp CGI and scintillating cutting-edge science, the programme brings back the real lost world.

A son's riveting look at a father whose life seemed straight out of a spy thriller. The secret world of a legendary CIA spymaster. Told by William Colby's son Carl, the story is at once a probing history of the CIA, a personal memoir of a family living in clandestine shadows, and an inquiry into the hard costs of a nation's most cloaked actions.

They were the most highly classified covert operations unit of the Vietnam War. The studies and Observations Group (SOG) targeted enemy strong points on the notorious Ho Chi Minh trail. Using clandestine techniques such as prisoner snatches they inflicted a relentless and unforgiving war on the Vietcong.

Tet Offensive: January 31 1968, Vietong and North Vietnamese troops surprise attacked almost every major town in South Vietnam to devastating effect. Disaster at Dien Bien Phu: The French thought they could set up base in Dien Bien Phu but, within weeks, were besieged and out-gunned.

Fifty years ago there were close to half-a-million lions in Africa. Today there are around 20,000. To make matters worse, lions, unlike elephants, which are far more numerous, have virtually no protection under government mandate or through international accords. This is the jumping-off point for a disturbing, well-researched and beautifully made cri de coeur from husband and wife team Dereck and Beverly Joubert, award-winning filmmakers from Botswana who have been Explorers-in-Residence at National Geographic for more than four years. Pointing to poaching as a primary threat while noting the lion's pride of place on the list for eco-tourists-an industry that brings in 200 billion dollars per year worldwide-the Jouberts build a solid case for both the moral duty we have to protect lions (as well as other threatened "big cats," tigers among them) and the economic sense such protection would make. And when one takes into account the fact that big cats are at the very top of the food chain-and that their elimination would wreak havoc on all species below them, causing a complete ecosystem collapse-the need takes on a supreme urgency.