Twenty years on from the invention of the world wide web, this major new series takes stock of its profound impact – how, for better and for worse, the digital revolution is reshaping our lives. Dr Aleks Krotoski explores the meaning of a phenomenon that is transforming everything, from how we learn to how we shop, vote and make friends. With a quarter of the planet connected so far, this series examines what is in store for the remaining 75 per cent of the world's population as they come online." In the first part series, Aleks charts the extraordinary rise of blogs, Wikipedia and YouTube, and traces an ongoing clash between the freedom the technology offers us, and our innate human desire to control and profit. Dr Aleks Krotoski looks at how it is reshaping almost every aspect of our lives. Joined by some of the web's biggest names - including the founders of Facebook, Twitter, Amazon, Apple and Microsoft, and the web's inventor - she explores how far the web has lived up to its early promise.

Go with us on a mathematical mystery tour, a provocative exploration of math's astonishing power across the centuries. We discover math's signature in the swirl of a nautilus shell, the whirlpool of a galaxy, and the spiral in the center of a sunflower. Math was essential to everything from the first wireless radio transmissions to the successful landing of rovers on Mars. But where does math get its power?" Astrophysicist and writer Mario Livio, along with a colorful cast of mathematicians, physicists, and engineers, follow math from Pythagoras to Einstein and beyond, all leading to the ultimate riddle: Is math an invention or a discovery? Humankind's clever trick, or the language of the universe? Whether we think we're good with numbers or not, we all use math in our daily lives. The Great Math Mystery sheds fascinating light on how math works in our brains and ponders the ultimate mystery of why it works so well when decoding the universe.

Every year, around the world, seasonal changes transform entire landscapes and draw in millions of creatures as these great events unfold. This fantastic series combines the epic scale of Planet Earth and the intimate, emotional stories of charismatic animals as they struggle to survive. Using state of the art technology, these programmes capture the Earth's most dramatic and epic wildlife spectacles and the intimate stories of the animals caught up in them.
The Great Melt: The summer melt of Arctic ice, opening up nearly three million square miles of ocean and land, provides opportunities for millions of animals, including beluga whales, families of Arctic foxes, vast colonies of seabirds, and the fabled Arctic unicorn, the narwhal. For polar bears, however, it is the toughest time of year. Why? How will they survive? A mother polar bear and her cub make their first journey together onto the sea ice. They are looking for ringed seals, their favourite prey. It is a serious business but the cub just wants to play. The melting ice makes it harder for them to hunt and threatens their survival. In a unique aerial sequence, the migration of narwhal with their distinctive unicorn-like tusks is filmed for the first time. The whales' journey is risky as they travel along giant cracks in the ice. If the ice were to close above them, they would drown. Hundreds of beluga whales gather in the river shallows. They rub themselves on smooth pebbles in one of the most bizarre summer spectacles. Guillemot chicks take their first flights from precipitous sea cliff nests to the sea 300 metres below. They attempt to glide to safety but many miss their target. Their loss is a bonus for the hungry Arctic fox family waiting below. As the melt comes to an end the bears gather, waiting for the sea to freeze again. Two 400kg males square up to each other to spar.

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 run not only provides food for bears, but for killer whales, wolves, bald eagles, and even the forest itself. The question is: will the salmon return in time to keep hungry bears alive?
A mother grizzly and her cubs emerge from their den high in snowy Alaskan mountains. Filming from the air the team capture a TV first, following the bears as they negotiate a near vertical slope on their journey to the coast where they await the return of the salmon. Meanwhile, the salmon are making their way to the to river mouths where they must swim upstream and against the current. The programme reveals how they tackle the torrents and leap over waterfalls, a feat equivalent to a human jumping over a house. Dozens of hungry bears eagerly await the salmon that make it up river. In another TV first, underwater cameras record the ingenuity and fancy footwork they use to collect dead salmon from the bottom of deep pools.

Set against the chaotic backdrop of recent events in the Middle East, Nadav Schirman's THE GREEN PRINCE retraces the details of a highly unprecedented partnership that developed between sworn enemies. In the style of a tense psychological thriller, this extraordinary documentary recounts the true story of the son of a Hamas leader who emerged as one of Israel's prized informants, and the Shin Bet agent who risked his career to protect him.

Ripped from international headlines, The Hacker Wars takes you to the front lines of the high-stakes battle over the fate of the Internet, freedom and privacy". Get ready to be shuttled between story lines at lightning speed mirroring the disjointed lives of the protagonists and life on the Internet. The Hacker Wars- a film about the targeting of (h)ac(k)tivists and journalists by the US government. Hacktivists are either terrorists or freedom fighters depending on ones perspective on who should control information. Meet weev, infamous hacker; Barrett Brown, journalist and propagandist for the hacktivist collective, Anonymous; and Jeremy Hammond, aka Anarchaos, number one on the FBI's cyber-criminal list. The fourth character is Sabu, the uber-hacker turned FBI informant who ran the FBI's cyber unit for 9 months and is responsible for many arrests. He is the shadowy protagonist in a high-stakes game of espionage and betrayal in the age of the Internet. Barrett Brown, American journalist, is facing 105 years in prison for publicizing information revealed through Jeremy Hammond's epic hacks. Hammond himself has just begun a 10-year prison term. Andrew Auernheimer, known by his hacker handle weev embarrasses large corporations. He was sentenced to 41 months for hacking AT&T, but his conviction was just overturned. He vows to continue doing what landed him in prison in the first place. These hacktivists are the rock stars of the Internetmodern-day folk heroes. Glenn Greenwald (Snowdon Leaks), Pulitzer Prize-winning journalist and others explain why these anti-heroes exposing the security surveillance state are essential to a functioning democracy.