In 1928, the city of Curitiba went through a rare snowstorm. To this day, it is the harshest snowstorm to ever take place in the city. Everything was recorded by Alberto Botelho in this short documentary.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth.  This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

Presenter and comic Jacob Burley hosts Bear Hunt; a stand-up show in which he explores the existence and extinction of the brown bear in the British Isles.

Michael Cockerell sheds new light on the tragi-comedy of the 1970s by focusing on some of its most controversial characters. With fresh filming and new interviews, along with a treasure trove of rare archive, the film presents the inside story of giant personalities who make today's public figures look sadly dull in comparison.  The well-known journalist revisits some of his films on the big characters who helped shaped the 1970s in Britain. Both tragic and comic, it highlights just how much our world has changed in four decades.

Hosted by actor and historian Sir Tony Robinson, this one-off special tells the powerful and moving story of five men, all members of a unique volunteer army – the Sheffield City battalion – as it recounts the soldiers’ last days, leaving their homes and loved ones to go and serve alongside their friends and neighbours, completely unaware of what lay ahead of them. Central to the programme is the story of Private Frank Meakin, who recorded his unique personal testimony of the war. Frank and his friends could never have anticipated what they would experience, but 100 years on we know in detail, thanks to his diary – an account that shouldn’t have existed, because keeping one was forbidden for servicemen on active duty on the Western Front. Frank’s diary, which was smuggled back from the Front, reveals the intimate details and dramatic stories of one battalion – and one British city – in the words of one man.

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

From St James's Palace in London, the historic proclamation of His Majesty the King takes place. For the first time since 1952, the Accession Council meets to make the formal declaration of the accession of the new sovereign. Following the Accession Council, the principal proclamation is read by Garter King of Arms.

Six blind Tibetan teenagers climb the Lhakpa-Ri peak of Mount Everest, led by seven-summit blind mountain-climber Erik Weihenmayer.