Chris Packham explores what makes animal groups successful. What enables birds of prey, from peregrine falcons to bald eagles, to rule the aerial roost? Show more

Naomi Wilkinson's global search for nightmarish critters takes her to South Africa where she delves deep into a scary subterranean world. Show more

Documentary series. It is a first for Cheryl when she performs an extraordinary operation on a 16-year-old goldfish called Baraka. Show more

Mark and Lauren get the help of experts to design dream dens for children. Eleanor, ten, loves books, so the team bring the library to her - a magical library! Show more

Dick and Dom go super-sized when they trace the origins of the ideas that have made shifting heavy weights a whole lot easier. Show more

Andy Torbet is on a quest to match the swimming skills of the seal. This challenge takes him to Alaska, for a swim in freezing lake water under a sheet of solid ice. Show more

Dara O Briain and Angela Scanlon host the robot fighting show. Competing in this round are Supernova, Frostbite, Wyrm, High 5, Crushtacean, Ironside 3, Pulsar and Apex. Show more

Gordon Buchanan tries to gain the trust of a herd of elephants in the wilds of Kenya to film this uniquely intimate portrait of their family life. Show more

Les Dennis, Susannah Constantine, Tameka Empson and Miles Jupp embark on a mission to regain their fitness, while trying to inspire the public to get active for Sport Relief. Show more

David Attenborough examines animals with an amazing ability to find their way - the dung beetle uses the sun, moon and even the Milky Way. Show more

Chris Packham hosts as owners and their dogs compete. The finalists compete in a triathlon involving a 2km bike race, a 100m open-water swim and a 1.5km cross-country run. Show more

Ten Brits embark on one of the toughest weeks of their lives with the secret advice of strangers from around the world. Here, a husband-to-be and a new dad get help. Show more

David Attenborough investigates the Siamese fighting fish and the kangaroo, examining why both species fight and what skills a winner must have. Show more

Classic wartime sitcom. Mainwaring and the platoon take part in a Home Guard efficiency test using Jones's van, which happens to be full of onions.

Documentary revealing the untold story of the last decade of the great artist's life, through the testimony of family and close friends. Show more

Drama. The cellist of a famous string quartet announces to his fellow musicians that he has been diagnosed with Parkinson's disease and wants to retire. Show more

Drama. The mysterious Katie moves to a quiet village in North Carolina, where she is slowly letting love back into her life. But then the secrets from her past come to the surface. Show more

Professor Mary Beard explores the controversial topic of religion and art. How, and at what cost, do different religions make the unseen visible? Show more