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The Great Salmon Run

   2009    Nature
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.
Series: Nature Great Events

Under the Sea

   2009    Nature    3D
Experience up-close encounters with some of the most remarkable marine life ever captured on film while examining the impact of global climate change on the ocean wilderness as award-winning director/cinematographer Howard Hall travels from South Australia to the Indo-Pacific to teach viewers the importance of keeping our oceans clean for future generations.
Just how great of an effect does global warming have on marine wildlife, and what can be done to ensure the future well-being of our planet? As the filmmakers reveal the delicacy of our fragile ecosystem, viewers are allowed the unique opportunity to see what we risk losing should we fail to address the issue of global climate change sooner rather than later.

Do You Know What Time It Is

   2008    Science
Particle physicist Prof. Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking? Brian visits the ancient Mayan pyramids in Mexico where the Maya built temples to time. He finds out that a day is never 24 hours and meets Earth's very own Director of Time. He journeys to the beginning of time, and goes beyond within the realms of string theory, and explores the very limit of time. He discovers that we not only travel through time at the speed of light, but the experience we feel as the passing of time could be an illusion.

Allergy Planet

   2008    Medicine
We are in the grip of an allergy epidemic. 50 years ago one in 30 were affected, but in Britain today it is closer to one in three. Why this should be is one of modern medicine's greatest puzzles. In search of answers, Horizon travels round the globe, from the remotest inhabited island to the polluted centres of California and the UK. We meet sufferers and the scientists who have dedicated their lives trying to answer the mystery of why we are becoming allergic to our world.

Astrobiology

   2008    Science
Does life exist on other planets? Astrobiology is a visionary new science that searches for life in space by combining the disciplines of astronomy, biology and geology. How did life evolve on Earth? What will life look like on other planets? These and other pertinent questions will be answered by a diverse group of scientists. Viewers will visit the Pilbara region of West Australia where the oldest evidence of life on Earth has been discovered. Travel to the moons of Jupiter and Saturn to test a theory that life could exist in the clouds of Venus. Finally, watch as experiments are done to see if life exists on exoplanets, earth-like planets beyond our solar system.
Series: The Universe
Planet Earth
Planet Earth

   2007    Nature
The Crime of the Century
The Crime of the Century

   2021    Medicine
The Beatles: Get Back
The Beatles: Get Back

   2021    Art
Animal
Animal

   2021    Nature
Bronze Age
Bronze Age

   2016    History
Jonestown: Terror in the Jungle
Jonestown: Terror in the Jungle

   2018    History
The Green Planet
The Green Planet

   2022    Nature
Dirty Money
Dirty Money

   2018    Culture