BBC Earth HD

'S2/E1'. In the second year of a seven-year project, six presenters chart the fight to save the planet's endangered ecosystems. In this episode, we visit the Maldives, USA and Greenland.

'S1/E5'. The team witness a baby boom in the delta. Lioness Matho must protect her cubs alone, whilst leopard mum Xudum reveals her new-borns with danger looming nearby.

'S1/E6'. Lion numbers continue to grow, but there's not enough food to go around. A lioness mum risks her life to feed her five cubs. And Xudum's new-born leopard cubs face a deadly threat.

'S1/E1 - Destiny'. Following the drama of the African savannah. A young hyena loses her mother in a terrifying attack by some rogue male lions and has to assume the leadership of her family.

'Sue Perkins' Big Adventure: Paris To Istanbul. S1/E1 - Episode 1'. In Paris, Sue samples insects and absinthe, models for Paris Fashion Week, and crashes a cabaret.

'Sue Perkins' Big Adventure: Paris To Istanbul. S1/E2 - Episode 2'. Sue finds her true calling as a mermaid, bathes in a tub of beer, and takes up Bavarian dancing for Munich Pride.

'Sue Perkins' Big Adventure: Paris To Istanbul. S1/E3'. In Salzburg, Sue becomes a yodelling YouTuber and does yoga with alpacas. In Vienna, she waltzes, goes hot rod racing and has the fattiest dumplings in the world.

'Sue Perkins' Big Adventure: Paris To Istanbul. S1/E4'. Sue puts on her dancing shoes and blags a backstage pass at Budapest's hottest party. The morning after, the city's soothing hot springs beckon.

'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/E8 - The Rising Tides'. The Alaskans push through the deep cold to increase their odds of survival.

'World's Most Amazing Walks With Robson Green. S1/E3 - Scotland'. Robson Green is in Scotland, a walkers' paradise hiking the Great Glen Way. This staggering rift valley cuts through the heart of the Highlands.

Changing Planet: Coral Special will embark on the third year of this 7-year project examining the issues facing the planet's most threatened ecosystems.

'Agatha Christie: Lucy Worsley On The Mystery Queen. S1/E2 - Destination Unknown'. Lucy Worsley uncovers the origins of Agatha Christie's macabre magic and, with some compelling characters, reveals carefully concealed secrets.

'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.

'S5/E15 - South North Water Diversion'. A £48bn, 2,400km network designed to divert 44.8bn cubic metres of water in China.