BBC Earth HD

'S6/E4 - Mystery of Rome's Sunken City'. A stunning discovery in the Mediterranean reveals a lost Roman city- and the untold story of an industrial capital made rich by supplying every corner of the empire.

'S1/E1'. In an epic opening to the series, Tim travels into the outback of Western Australia, looking at the stars with British astronomer Dr Natasha Hurley-Walker.

'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/E6 - From Here to There'. Alaskans test their will and luck against Dark Winter's obstacles.

'S1/E6'. Tony Robinson looks under the bonnet of some innovative machines leading the green revolution, from a Welsh hydrogen-powered car to a solar plane used to train the next generation of pilots.

'S5/E4 - Portugal'. From a vineyard that has been making one of Britain's favourite tipples - Port - travel down the line that once transported it to the city that gave it its name: Porto.

'S6/E4 - Mystery of Rome's Sunken City'. A stunning discovery in the Mediterranean reveals a lost Roman city- and the untold story of an industrial capital made rich by supplying every corner of the empire.

'S1/E1'. In an epic opening to the series, Tim travels into the outback of Western Australia, looking at the stars with British astronomer Dr Natasha Hurley-Walker.

'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/E6 - From Here to There'. Alaskans test their will and luck against Dark Winter's obstacles.

'S1/E6'. Tony Robinson looks under the bonnet of some innovative machines leading the green revolution, from a Welsh hydrogen-powered car to a solar plane used to train the next generation of pilots.

'S5/E4 - Portugal'. From a vineyard that has been making one of Britain's favourite tipples - Port - travel down the line that once transported it to the city that gave it its name: Porto.

'S1/E5 - The Big Bang: Before the Dawn'. Professor Brian Cox journeys across the vastness of time and space.

'S1/E5'. Tony goes on safari to find majestic machines that are inspired by the animal kingdom. We'll see an excavator that walks like a spider, and Tony gets hands-on with a live-saving mechanical octopus.

'S9/E9 - Winter Reigns'. As the cold season wanes in the Arctic, winter does not go quietly into the night.

'S7/E6 - Ethiopia'. Native Glaswegian Susan rejected retirement for a remote region of Africa, where she has set up both a school and a mountain-top restaurant.

'S5/E4 - Portugal'. From a vineyard that has been making one of Britain's favourite tipples - Port - travel down the line that once transported it to the city that gave it its name: Porto.

'S6/E4 - Mystery of Rome's Sunken City'. A stunning discovery in the Mediterranean reveals a lost Roman city- and the untold story of an industrial capital made rich by supplying every corner of the empire.

'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/E6 - From Here to There'. Alaskans test their will and luck against Dark Winter's obstacles.

'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.

'S7/E7 - Panama'. Ben meets Jaimie, an eccentric inventor originally from Vermont who lives with his family on a group of islands he has bought off the coast of Panama.

'S9/E10'. The Alaskans are faced with adversity as they confront the unknown in the dead of winter.

'S6/E4 - Mystery of Rome's Sunken City'. A stunning discovery in the Mediterranean reveals a lost Roman city- and the untold story of an industrial capital made rich by supplying every corner of the empire.

'S1/E1'. In an epic opening to the series, Tim travels into the outback of Western Australia, looking at the stars with British astronomer Dr Natasha Hurley-Walker.

'S2/E2 - Change'. In the aftermath of the storm, the vast landscape is flooded. Everyone is on the move, but the flood waters bring danger and our characters experience the terrifying ordeal of being washed away.

'S5/E5 - Italy'. We're celebrating Italy and following the Neapolitan Line. Travelling west from the gelato shops of the seaside town of Pescara, we cross Italy through the wild Apennine Mountains.

'S1/E6'. Tony Robinson looks under the bonnet of some innovative machines leading the green revolution, from a Welsh hydrogen-powered car to a solar plane used to train the next generation of pilots.

'S1/E1 - French Polynesia'. Martin explores French Polynesia through French baguettes and coral wine.

'S1/E1'. Commencing from the city of Auckland, New Zealand from a Train travels through the North Island passing viaducts and passing through rich farmlands to the dramatic scenery of the central volcanic plateau.

'S10/E12 - Sri Lanka'. Ben stays with Naveen and Anke who have made their home in the Sri Lanka's highlands. He uncovers why they swapped one of the biggest cities in the world for a simple off-grid existence miles from civilisation.

'S11/E7 - The Foundation'. Alaskans must rely on solid foundations to persist through Dark Winter.

'S1/E1'. See how Britain's National Gallery, The Tate, stepped in to help the Bankside on the southern shore of the River Thames.

'S5/E5 - Italy'. We're celebrating Italy and following the Neapolitan Line. Travelling west from the gelato shops of the seaside town of Pescara, we cross Italy through the wild Apennine Mountains.