David Attenborough celebrates the amazing variety of the natural world in this epic documentary series, filmed over four years across 64 different countries.

David Attenborough travels to the end of the earth, taking viewers on an extraordinary journey across the polar regions of our planet.

Sir David Attenborough narrates this critically acclaimed series that dives deep into the marine environment of Planet Earth. Although two-thirds of the world's surface is covered with water, scientists know less about the oceans than they do about the surface of the moon. This limited series travels from various coasts to the poles to examine watery denizens ranging from the gigantic blue whale to microscopic coral polyps.

A group of the best survival experts in the world take on an un-survivable situation: 40 days. 40 nights. No food, water or clothes. To survive they'll need to master the environment, pushing far beyond the breaking point. Will even one be able to finish?

Motor mastermind Richard Rawlings and mechanical prodigy Aaron Kaufman search for forgotten and neglected vintage cars. They need big projects and big profits to keep the doors open at Gas Monkey Garage in Dallas, TX.

On any street, behind any smile, lurks an American Monster. Never-before-seen-video footage looks straight into the eyes of a killer, hidden in plain sight. Mom next door; dad across the street; the kid who never broke the rules. Anyone can be a monster.

The Discovery Channel's Shark Week, first broadcast on July 17, 1987, is a weeklong series of feature television programs dedicated to sharks. Held annually, normally in July or August, Shark Week was originally developed to raise awareness and respect for sharks. It is the longest-running cable television programming event in history. Now broadcast in over 72 countries, Shark Week is promoted heavily via social networks like Facebook and Twitter.

A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.

Three hard-core crews of gold prospectors take the gamble of a lifetime and battle to strike it big, deep in the wild west of outback Australia. The soaring highs and the crushing lows of the gold season are revealed as the crews pursue their all-important targets - braving brutal heat, punishing conditions, mechanical breakdowns and constant pressure.

Gripping clips of kidnappings, break-ins, car chases, violent road rage incidents and other crimes rack up millions of views. But crimes gone viral goes beyond the jaw-dropping footage to tell the full story. Viral video of good samaritans who intervene to stop crimes, brave victims who fight back against their attackers, clever prison escapes and a shark heist.

Selection for the SAS is one of the world's toughest job interviews and physical fitness is only the starting point. What's really being tested is psychological resilience and character as candidates undergo sleep deprivation, interrogation and a series of increasingly complex mind games. In this programme, five ex-special forces soldiers re-create tasks from the SAS's secret selection process, putting 30 civilian men through the ultimate test of their physical and - more importantly - their psychological resilience.

David Attenborough presents a nature documentary series looking at why mammals are the most successful creatures on the planet.

Combining fact and informed speculation with cutting-edge computer graphics and animatronics effects, the series set out to create the most accurate portrayal of prehistoric animals ever seen on the screen.