BBC Earth HD

'Alan Cumming's Most Luxurious Train Journeys: Scotland. S1/E3 - Episode 3'. In the picturesque village of Plockton, Alan and his fellow guests explore the coastal marvels of Scotland on a boat trip overlooking the Isle of Skye.

'S1/E1'. Martin Clunes explores tropical São Tomé and Príncipe, known as the African Galapagos, and encounters some fearsome predators and powerful women on the remote Bijagos Islands.

'S1/E2 - Raleigh'. James May charts the life of Sir Walter Raleigh, the most famous man in Elizabethan England, who discovered potatoes and tobacco, and went to America to build England's first colony - except he didn't.

'S1/E6'. It's a race to the finish line in Tromsø for the four celebrity teams. Which will get there first and be crowned champions?

Panorama meets some of the brightest minds in climate science advocating more drastic action to halt climate catastrophe - including controlling the power of the weather.

'S3/E5 - Forests'. Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, 'spirit bears' fish, and hornbills imprison themselves in trees.

'Alan Cumming's Most Luxurious Train Journeys: Scotland. S1/E3 - Episode 3'. In the picturesque village of Plockton, Alan and his fellow guests explore the coastal marvels of Scotland on a boat trip overlooking the Isle of Skye.

'S1/E1'. Martin Clunes explores tropical São Tomé and Príncipe, known as the African Galapagos, and encounters some fearsome predators and powerful women on the remote Bijagos Islands.

'S1/E2 - Raleigh'. James May charts the life of Sir Walter Raleigh, the most famous man in Elizabethan England, who discovered potatoes and tobacco, and went to America to build England's first colony - except he didn't.

'S1/E6'. It's a race to the finish line in Tromsø for the four celebrity teams. Which will get there first and be crowned champions?

Panorama meets some of the brightest minds in climate science advocating more drastic action to halt climate catastrophe - including controlling the power of the weather.

'S3/E5 - Forests'. Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, 'spirit bears' fish, and hornbills imprison themselves in trees.

'S1/E1 - Ending HIV in America'. The story behind the extraordinary scientific progress in the fight against HIV, 40 years after its initial outbreak shook the world.

'S5/E4 - Namibia'. Mike Wozniak and Ola Labib head to one of the wildest places on Earth - the Namib desert - to meet for the first time and have each other for company on their journey.

'S5/E5 - Slovenia'. David Harewood and best friend Fraser James swap the sets of Hollywood for a new challenge in Slovenia where they face some of the most dangerous roads in Europe.

'S5/E9 - Spain'. Looping around Andalucía, the luxury Al Andalus train takes in some of the most staggeringly beautiful cities in Spain.

'S5/E10 - Australia'. Celebrating the wonders of Queensland, we travel over 1,000 miles from Brisbane to Cairns onboard one of the most advanced trains in the world.

'S1/E1 - Beneath the Waves'. Asia has the longest coastline of any continent and the earth's richest coral reefs. This episode explores Asia's waters, as spectacular as they are diverse, and never-seen-before animal behaviour.

'S1/E2 - Above the Clouds'. Asia is the most mountainous continent on earth. From the tropical south to its barren centre, its highest places are home to some of our planet's most remarkable wildlife.

'S1/E3 - The Frozen North'. In the remote reaches of Asia's frozen north, creatures must overcome unique challenges, finding exceptional ways to thrive in a hostile world that pushes life to its very limits.

'Big Adventures: Into The Mississippi With Nick Knowles. S1/E1'. Nick starts with a helicopter ride along the northernmost stretch of the Mississippi.

'Big Adventures: Into The Mississippi With Nick Knowles. S1/E2'. Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

'S1/E1 - Episode 1'. Sue starts her Alaskan adventure in Anchorage, America's last frontier, to see if she has what it takes to survive in the wilderness, a place of adventure, beauty, and danger.

'S1/E2 - Episode 2'. Sue continues her Alaskan adventure of a lifetime, following the old gold trail route into the interior of America's largest and wildest state.

'S2/E6 - British Columbia, Canada'. Ben Fogle revisits former war correspondent Julius Strauss and his wife Kristin, who live in British Columbia. Their home is in the middle of a mountainous region that is home to grizzly bears.

'S3/E6 - Bulgaria'. Ben Fogle returns to Bulgaria to meet up with nomads Miriam and Peter after four years.

'S3/E7 - Thailand'. Ben travels to Thailand to meet Paul and Sao, who he first visited in Cambodia. Paul and his family have build their version of an English castle.

'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.

'Alan Cumming's Most Luxurious Train Journeys: Scotland. S1/E4 - Episode 4'. Alan visits the historic Scone Palace, the site of the first Scottish Parliament and crowning place of Scottish Kings. It's now the home of Lady Mansfield.

'S3/E5 - Forests'. Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, 'spirit bears' fish, and hornbills imprison themselves in trees.

'S1/E3 - Cook'. James May charts the voyages of Captain Cook, who travelled farther than any man had gone before, and filled in a third of the world map along the way.

'S3/E7 - Thailand'. Ben travels to Thailand to meet Paul and Sao, who he first visited in Cambodia. Paul and his family have build their version of an English castle.

'S1/E1 - Ending HIV in America'. The story behind the extraordinary scientific progress in the fight against HIV, 40 years after its initial outbreak shook the world.