Darren Harriott is a former bouncer and self-confessed city boy, while Ria Lina is full of adventurous spirit with a PhD and autism. How will they fare travelling in South Africa?
All episodes for series 4 of World's Most Dangerous Roads
S4 E1 · Albania
Will Mellor cajoles one of his besties, comedian Keith Lemon, to join him on a road trip.
S4 E4 · Australia
Stephen Mangan and Lara Ricote, who have never met, aim to reach northernmost Australia.
S4 E5 · Iceland
Ed Gamble, Lou Sanders, and their pair of 'his 'n' hers' driving gloves tackle the landscape of Iceland.
S4 E6 · Romania
Derry Girls stars Jamie-Lee O'Donnell and Saoirse-Monica Jackson tackle the ruggedness of Romania.
S4 E7 · South Africa
Self-confessed city boy Darren Harriott teams up with adventurous Ria Lina for a trip across South Africa.
S4 E8 · Morocco
Comedians Maisie Adam and Suzi Ruffell head to Morocco for a Thelma and Louise-esque road trip...
Alison & Larry: Billericay to Barry
Description: Gavin & Stacey's Alison Steadman and Larry Lamb take a 210-mile road trip.; Category: Factual Entertainment; 3 episodes available.
Ricky & Ralf's Very Northern Road Trip
Description: The Royle Family's Ricky Tomlinson and Ralf Little travel across northern England.; Category: Travel; 6 episodes available.
Red Bull Soapbox Race
Description: Annual event in which amateur drivers race homemade vehicles down an obstacle course.; Category: Motoring; 4 episodes available.
Fast Justice
Description: Observational documentary series following Suffolk Police's specially-trained officers.; Category: Motoring; 9 episodes available.
Guy Martin: The World's Fastest Electric Car?
Description: Guy explores the world of electric vehicles and tries to set a world speed record in one.; Category: Motoring; 1 episode available.
Secrets of the Transport Museum
Description: Follow Brooklands volunteers and staff as they care for historic motors and airplanes.; Category: Factual Entertainment; 20 episodes available.
Guy Martin's Wall of Death: Live
Description: Guy Martin takes on a daring extreme world record attempt on a Wall of Death.; Category: Factual Entertainment; 1 episode available.
Cop Car Workshop
Description: A team of Liverpool mechanics who build bespoke cars for the Merseyside Police.; Category: Emergency Services; 20 episodes available.
Ross Noble: Off Road
Description: Comic Ross Noble takes part in the Scottish Six Days Trial, a legendary biking challenge.; Category: Motoring; 3 episodes available.
James May's Cars of the People
Description: James May discovers how the car became an everyday part of normal people's lives.; Category: Motoring; 6 episodes available.
Inside Bentley: A Great British Motorcar
Description: Behind the scenes at the car company's factory.; Category: Motoring; 1 episode available.
