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.

Experience the remarkable career of Arnold Schwarzenegger, a man who lived three lifetimes – from bodybuilding champion to Hollywood icon to California governor. Delve into the captivating series 'Arnold' and witness the incredible journey of this multifaceted legend.
The first episode explores his journey from a challenging childhood in Austria to becoming a dominant force in the world of bodybuilding. Despite a problematic family environment, Arnold's inner strength and determination fueled his pursuit of excellence. He competed relentlessly, amassing an impressive 13 world bodybuilding championships, including Mr. Olympia. As Arnold's bodybuilding career reached its pinnacle, he decided to transition into acting, driven by a vision to become a star. Throughout the series, Arnold's indomitable spirit and unrelenting commitment to his aspirations serve as a testament to the remarkable journey that transformed him from an iconic bodybuilder and actor to prominent politician.

The last episode takes viewers on a journey through Arnold Schwarzenegger's later venture into politics as the Governor of California, highlighting the challenges he faced in his remarkable journey to the state's highest office. Once Governor, he grappled with complex issues, including a budget crisis and political opposition. The film provides an intimate look at the trials and tribulations Arnold confronted during his political tenure, highlighting his determination to overcome obstacles and make a lasting impact on the state. Moreover, the documentary underscores how Arnold utilized his platform to advocate for truth and unity, especially during critical moments in American history.
The film is a riveting look at the life of a living legend who continues to defy expectations and promote a message of unity, love, and perseverance, emphasizing the need to speak out against misinformation and extremism. Arnold Schwarzenegger, a legendary figure, demonstrates his powerful influence to inspire positive change in the world. This documentary serves as a moving testament to an extraordinary life worth exploring.

In this episode, Helen seeks out the colours that turned planet Earth multicoloured. To investigate the essence of sunlight Helen travels to California to visit the largest solar telescope in the world. She discovers how the most vivid blue is formed from sulfur atoms deep within the Earth's crust and why the presence of red ochre is a key sign of life. In gold, she discovers why this most precious of metals shouldn't even exist on the surface of the planet and in white, Helen travels to one of the hottest places on Earth to explore the role salt and water played in shaping planet Earth.

A stunning documentary about the escalating global nuclear arms crisis, Countdown to Zero is a fascinating and frightening exploration of the dangers of nuclear weapons, exposing a variety of present day threats and featuring insights from a host of international statesmen and experts. Among the voices are President Jimmy Carter, Mikhail Gorbachev, Pervez Musharraf, Tony Blair, former CIA Operations Officer Valerie Plame Wilson, the Ploughshares Fund’s Joe Cirincione and Stanford political scientist Scott Sagan. traces the history of the atomic bomb from its origins to the present state of global affairs: nine nations possessing nuclear weapons capabilities and others racing to join them, with the world held in a delicate balance that could be shattered by an act of terrorism, failed diplomacy, or a simple accident. It makes a compelling case for worldwide nuclear disarmament, an issue more topical than ever with President Obama and other world leaders working to revive this goal today. Written and directed by Lucy Walker, Countdown to Zero was screened for attendees of this year’s Global Zero International Conference in Paris and the TED Conference in Long Beach, California.

Without doubt, the Eagles are one of the all-time biggest acts in popular music since the dawn of the rock'n'roll era. The band's roots go back to their role as defining artists in the phenomenally popular Southern California rock scene of the '70s, a decade in which they delivered four consecutive #1 albums.
Their momentous 2004 farewell tour filled stadiums around the world, and this series captures one of the most stellar events from that now-historic global sweep. It was filmed in Melbourne, Australia at the Rod Laver Arena on November 14, 15 and 17, 2004.