BBC Earth HD

'S1/E3 - Piece of Plastic'. Leopard Olimba finds a mate, but fortunes turn against the lions. Extreme flooding leads to disaster for the hyena clan, and the time has come for leopard Mutima to leave.

'S1/E4 - Niagara Falls with Liza Tarbuck'. Liza Tarbuck joins Chris in Canada to experience the Canadian side Niagara Falls, with Chris especially excited to experience a wonder that actually makes a noise!

'S1/E3 - Chattanooga & Nashville - The Solid South'. Griff explores Tennessee's river power, atomic secrets, and Nashville's country music scene.

'S1/E1 - The Making and Breaking'. Biographer Martha Zamora describes Frida's rebellious schooldays, where she falls in with the boys and meets Diego Rivera, a superstar artist who will go on to change her life.

'S11/E17 - Run Aground'. Alaskans are in the home stretch of preparing for the upcoming winter.

'S6/E2'. Extreme temperatures fuel wildfires on England's east coast, leaving rescue teams overrun.

'S1/E3 - Chattanooga & Nashville - The Solid South'. Griff explores Tennessee's river power, atomic secrets, and Nashville's country music scene.

'S1/E4 - Niagara Falls with Liza Tarbuck'. Liza Tarbuck joins Chris in Canada to experience the Canadian side Niagara Falls, with Chris especially excited to experience a wonder that actually makes a noise!

'S1/E1 - Seeing in Colour'. The natural world is full of colours. For us, they are a source of beauty, but for animals they are a tool for survival. David Attenborough reveals the extraordinary ways in which animals use colour.

'S3/E5 - Devon and Cornwall'. A scenic journey to the tip of Cornwall. Starting in Devon, this trip crosses the Royal Albert Bridge, heading towards Penzance before joining two picturesque branch lines.

'S3/E6 - Lakes & Dales'. Starting in Preston, locomotive 6201 - The Princess Elizabeth - pulls out, hauling stylish 1930s Pullman carriages in its wake, heading towards the Lake District.

'S1/E1 - Kalahari'. David Attenborough explores two deserts in Africa's south west, where he encounters meerkats, black rhinos, giant insects and the greatest giraffe battle ever filmed.

'S1/E2 - Savannah'. David Attenborough takes a breathtaking journey through Africa, looking at the constantly changing landscape of east Africa and creatures found nowhere else on Earth.

'S1/E3 - Congo'. David Attenborough's breathtaking journey through Africa. In the Congo, animals must stand up and fight for their patch, and head off stiff competition.

'S1/E1'. Seven well-known personalities, with differing faiths and beliefs, meet in northern Portugal to tackle a modern Catholic pilgrimage: the famous sanctuary in the city of Fatima.

'S1/E2'. With under a week to go before they join tens of thousands of people in Fatima for the annual celebration of the Miracle of the Sun, the pilgrims decide to speed up their journey.

'S1/E3'. In Coimbra, there are visits to a convent, a mosque and a synagogue. Finally, after 14 days and 364 kilometres, the group finally reach the famous Sanctuary of Fatima.

'S1/E1 - Madrid Part 1'. In the vibrant, bustling Spanish capital Madrid, Michael enjoys an Ecuadorian feast, tries suckling pig at the world's oldest restaurant, and visits El Teatro Real opera house and the Royal Palace.

'S1/E2 - Madrid Part 2'. Michael enjoys an action-packed day savouring exquisite grilled fish, modelling traditional Spanish capes, and unearthing a secret speakeasy that was the favourite haunt of a literary hero.

'S1/E3 - Madrid Part 3'. Michael ends his long weekend on a high as he dines at the oldest restaurant in the world, reputedly, and makes a poignant pilgrimage to his uncle's old flat he first visited 60 years ago.

'S10/E5 - Zambia'. Ben journeys into Zambia to live with a British family who have built a safari lodge on the edge of a national park. Ben uncovers what motivates them to keep going.

'S10/E6 - Azores'. On Flores in the Azores, Ben meets a family who live off-grid in a cottage on a steep mountain.

'S10/E7 - Dorset'. Ben travels to Dorset to live for a week with Chris, a former paratrooper who has spent the last five years walking Britain's coastline, finding love and raising thousands for charity.

'S11/E18 - Beyond the Tundra'. With summer nearing its end, Alaskans kick into high gear.

'S1/E1'. Gordon Buchanan tracks and befriends a vast herd of wild horses in Canada.

'S1/E3 - Piece of Plastic'. Leopard Olimba finds a mate, but fortunes turn against the lions. Extreme flooding leads to disaster for the hyena clan, and the time has come for leopard Mutima to leave.

'S1/E2 - Pompeii'. In the shadow of the mighty volcano Vesuvius, lies the greatest archaeological time capsule ever discovered, an entire city and its people frozen in time: Pompeii.

'S10/E7 - Dorset'. Ben travels to Dorset to live for a week with Chris, a former paratrooper who has spent the last five years walking Britain's coastline, finding love and raising thousands for charity.

'S1/E5 - Hue to Halong Bay'. Michael Portillo travels through the Socialist Republic of Vietnam. Near the formidable imperial city of Hue, Michael meets milliner Mrs Ngo, who teaches him how to make the iconic conical hat.

'S11/E18 - Beyond the Tundra'. With summer nearing its end, Alaskans kick into high gear.

'S11/E15 - The Way of the Bear'. Alaskans must capitalize on the resources of the Arctic Summer.

'S1/E3 - Piece of Plastic'. Leopard Olimba finds a mate, but fortunes turn against the lions. Extreme flooding leads to disaster for the hyena clan, and the time has come for leopard Mutima to leave.

'S1/E2 - Pompeii'. In the shadow of the mighty volcano Vesuvius, lies the greatest archaeological time capsule ever discovered, an entire city and its people frozen in time: Pompeii.

'S10/E7 - Dorset'. Ben travels to Dorset to live for a week with Chris, a former paratrooper who has spent the last five years walking Britain's coastline, finding love and raising thousands for charity.

'S11/E18 - Beyond the Tundra'. With summer nearing its end, Alaskans kick into high gear.

'S11/E1 - Pulled from the Darkness'. As Alaskans enter a new dawn in the Arctic winter, they must adapt to the changing landscape if they are to survive.

'S3/E6 - Lakes & Dales'. Starting in Preston, locomotive 6201 - The Princess Elizabeth - pulls out, hauling stylish 1930s Pullman carriages in its wake, heading towards the Lake District.

'S1/E8 - Snowbound'. Becky makes a last-ditch effort to harvest a Muskox.

'S10/E9 - Ireland'. On Great Blasket Island, off the coast of Ireland, Ben stays with London couple Dan and Emily, who landed an extraordinary job as island caretakers on Europe's rugged western frontier.

'S1/E5 - Sicily Part 2'. Michael's Sicilian adventure sees him dine with a Duchess, journey off-road to discover a wonder of the classical world, and marvel at a golden cathedral with a hidden secret.

'S1/E3 - Chattanooga & Nashville - The Solid South'. Griff explores Tennessee's river power, atomic secrets, and Nashville's country music scene.

'S8/E6 - Ullapool'. Ben ventures deep into the Scottish Highlands to meet Iona and her young family on the near-10,000-acre wilderness estate that she grew up on.

'S11/E4 - Off the Deep End'. Alaskans rediscover old practises to get through the heart of winter.

'S1/E4 - Cape'. This episode reveals how the clash of two currents - one warm, one cold - creates the incredible spectacle of the 'sardine run' off the Great Cape.

'S10/E10 - Thailand'. Ben meets Niall, who rescues and cares for street dogs in Koh Samui.

'S1/E1 - Congo'. Simon Reeve battles his way across the Congo, braving thick jungle and tropical swamps in search of the people and the wildlife who make their home in Africa's greatest rainforest.

'S3/E6 - Lakes & Dales'. Starting in Preston, locomotive 6201 - The Princess Elizabeth - pulls out, hauling stylish 1930s Pullman carriages in its wake, heading towards the Lake District.

'S5/E9'. A wind driven wildfire consumes a Colorado neighbourhood. In New Mexico, freezing conditions trap 21 people in an ice-covered tram car.

'S1/E3 - Piece of Plastic'. Leopard Olimba finds a mate, but fortunes turn against the lions. Extreme flooding leads to disaster for the hyena clan, and the time has come for leopard Mutima to leave.

'S1/E6 - Sicily Part 3'. Michael hits the beach to cook a secret seafood speciality, discovers a curious open-air library, crafts some incredible cactus-inspired jewellery, and toasts a Hollywood legend.

'S4/E1 - Taiwan'. A voyage around the island of Taiwan.

'S1/E6 - Jakarta to Borobudur'. In the heaving megacity of Jakarta, Michael Portillo uncovers Indonesia's colonial past as part of a Dutch empire and its rich history as a port.

'S1/E4 - Flowers'. Injured wild dog Flint helps care for Storm's largest ever litter of pups. Leopard Mutima searches for a home, and the lions are challenged by forces beyond their control.

'S8/E7 - Crickhowell, Wales'. Ben meets the Powell family who are living an off-grid existence in a hidden valley in the Black Mountains in Wales. While there he helps plant the biggest new woodland in Wales for a generation.

'S11/E5 - Going in Circles'. Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

'S4/E2 - Austria'. Cameras focus on Austria's stunning Transalpine railway, which crosses the snowy peaks of the Tirol. The journey begins in the historic city of Graz and heads west through famous alpine beauty spots.

'S1/E6 - Sicily Part 3'. Michael hits the beach to cook a secret seafood speciality, discovers a curious open-air library, crafts some incredible cactus-inspired jewellery, and toasts a Hollywood legend.