BBC Earth HD

'S1/E2 - Episode 2'. Six Brits who are living with obesity continue their fact-finding global journey. In Tonga, the group meet the crusading Ofeina and reluctantly embrace the traditional raw fish diet.

'S4/E3 - Revisit: County Mayo'. Ben revisits his old friends Georg and Bettina, who live on a remote bogland in County Mayo. They found solace in the wilds of Ireland, but three years later, they are still weighing up options.

'S1/E2'. History gets personal as historian David Olusoga uncovers how British imperial history is family history.

'S2/E1 - South Africa'. Take a ride on Rovos Rail's luxury train that meanders from Pretoria to Durban, taking in a private game reserve and the site of one of South Africa's bloodiest battles.

'Joanna Lumley's Danube: Europe's Mightiest River. S1/E3 - Budapest'. In Budapest Joanna explores the river by boat and rides a unique children's railway, as well as discovering the city's Jewish heritage.

'S10/E3 - Lawnmowers'. Paddy McGuinness tours a lawnmower factory. Ruth Goodman shows the history of how stately homes adopted the lawn, and Cherry Healey visits Wembley Stadium to see how professional turf is trimmed.

'S2/E5'. Paul and Bob fly to Enniskillen to fish for the pike which eluded them in series one. Paul demonstrates how to perform life-saving CPR and Bob tells Paul's fortune in a traditional Irish manner.

'S1/E6 - New Zealand'. Jump aboard New Zealand's Northern Explorer, the longest running passenger service in the country. The train travels 423 miles along the North Island Main Trunk Line.

'S1/E1 - Norway'. In Norway we follow a train journey that begins in the capital Oslo and heads all the way to Bodo inside the Arctic Circle. The first leg is the Dovre line, running from to the remote northern wonderland of Trondheim.

'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.

'Joanna Lumley's Danube: Europe's Mightiest River. S1/E3 - Budapest'. In Budapest Joanna explores the river by boat and rides a unique children's railway, as well as discovering the city's Jewish heritage.

'S10/E3 - Lawnmowers'. Paddy McGuinness tours a lawnmower factory. Ruth Goodman shows the history of how stately homes adopted the lawn, and Cherry Healey visits Wembley Stadium to see how professional turf is trimmed.

'S4/E3 - Revisit: County Mayo'. Ben revisits his old friends Georg and Bettina, who live on a remote bogland in County Mayo. They found solace in the wilds of Ireland, but three years later, they are still weighing up options.

'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.

'S2/E6'. High in the mountains of Morocco lives a descendant of a long line of macaques.

'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.

'S7/E15 - Domino Effect'. Sue cleans up her river and goes fishing. Andy and Denise repair a Jeep. Jessie falls trees and prepares wood. The Hailstones build a trapping cabin.

'S1/E6 - New Zealand'. Jump aboard New Zealand's Northern Explorer, the longest running passenger service in the country. The train travels 423 miles along the North Island Main Trunk Line.

'S1/E7 - Tsunamis'. The deadly Tsunami is fuelled by an off shore earthquake or underwater volcanic eruption.

'S10/E3 - Oregon'. Ben spends time with Pirate Rob, who lives for half the year with his 18-year-old son Damien in a sandbag house on an island in the middle of an industrial river in Oregon.

'Joanna Lumley's Danube: Europe's Mightiest River. S1/E4 - Romania'. Joanna heads towards the Danube Delta, one of the last great wilderness areas remaining in Europe, full of birdlife including the majestic Pelican.

'S2/E1 - South Africa'. Take a ride on Rovos Rail's luxury train that meanders from Pretoria to Durban, taking in a private game reserve and the site of one of South Africa's bloodiest battles.

'S10/E4 - Tuscany'. In Tuscany, Ben meets British couple George and Sophie who have breathed new life into a farmhouse. George's desire to live self-sufficiently lead to a lifelong project.

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

'S4/E4 - Revisit: Utah'. Ben makes an unprecedented third visit to see his old friends Bill and Bob, elderly twins living in the canyons of Utah, and realises that their paranoia about the outside world has grown.

'S5/E6 - Colorado'. Jess Fostekew and her good friend and fellow comedian Desiree Burch take on an utterly insane trip across Colorado's Rocky Mountains in a Wild West adventure.

'S2/E2 - Mexico - El Chepe - The Copper Canyon Train'. The Chihuahua Pacific Railway is known as the El Chepe in northern Mexico. It took a hundred years to build the line from Creel to the coast.

'Joanna Lumley's Danube: Europe's Mightiest River. S1/E4 - Romania'. Joanna heads towards the Danube Delta, one of the last great wilderness areas remaining in Europe, full of birdlife including the majestic Pelican.