BBC Earth HD

'S1/E3'. We meet entrepreneurs Shona and Lewis who've given up their jobs for their passion.

'S1/E4'. Tony Robinson explores machines that help us mere mortals become superhuman. From a tree-chopping-device faster than twenty lumberjacks, to a jet-powered suit that could be worn by flying paramedics.

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

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

'S1/E6 - Alaska: Last American Frontier'. In southeast Alaska, there's an ice-bound Eden that harbors possibly the richest temperate rainforests of all.

'S2/E3'. Ben Fogle heads for the Orkney Isles to investigate Norse Christian heritage and how they are a place of modern pilgrimage, offering a place of deep time and space to reconnect.

'World's Most Amazing Walks With Robson Green. S1/E4 - Normandy'. Robson Green walks in the footsteps of the brave soldiers of the D-Day landings in Normandy, France, on an emotional journey of sacrifice and courage.

'S1/E4'. Entering The Balkans by sleeper train, Alice Roberts is in Bulgaria's capital Sofia. She'll learn how the empire was controlled from Istanbul and how today the landscape today is almost entirely Soviet.

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

'S1/E1'. Virologist Dr Chris van Tulleken embarks on a global investigation into the hunt for the pathogen that could trigger the next pandemic and the cutting-edge science developed to tackle it.

'S1/E4'. Meet the organisers and riders of the Bealach Mor, one of Britain's toughest cycling events.

'S1/E5'. In her final chapter, Alice Roberts takes a train to the western point of the Ottoman Empire, Budapest to learn how it ended.

'S22/E5 - Grand Designs: 25 Years and Counting'. To mark 25 years of the nation's favourite homebuilding programme, Kevin McCloud celebrates the triumphs and commiserates the disasters as he looks back at some iconic moments.

'S2/E1'. Aspiring midwife Anthea, who's 18, has a difficult tumour that may put her arm at risk. Cameron, who's 43, is offered a last roll of the dice with a radical procedure to combat an aggressive cancer.

'S10/E11 - Lincolnshire'. Ben heads to northern England and stays with host Paul in Lincolnshire onboard his 30-year-old converted military truck. He discovers why Paul traded living in a house for life on the road.

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

'S1/E1'. Starting in Alexandria, Alice searches for Cleopatra, discovers how the Romans and the Greeks reacted to the treasures of Ancient Egypt, and learns how a slave became a sultan and built his own caste

'S1/E4'. Meet the organisers and riders of the Bealach Mor, one of Britain's toughest cycling events.