Catch-Up with Quest On-Demand
X-Machines: Beluga, Icehammer, Goliath
The world's largest mining machine digs for coal in Canada, mobile ice hammers save a town from flooding and an air transporter battles extreme conditions to deliver its cargo.
World's Top 5: Super Cars
Super cars including the Bugatti Veyron and the Thrust SSC are pitted against one another in five automotive challenges to find out which is the very best.
Bear Grylls: Born Survivor: Iceland
Bear Grylls demonstrates how to survive in Iceland's Arctic conditions by making a snow cave, finding water and avoiding frostbite.
Mega Rigs: North Sea Mining
Explore methods of extracting and transporting natural gas and join scientists as they test a process called fracking that releases gas by cracking open rock deep beneath the sea.
How It's Made: Episode 2
More everyday items are put under the microscope as we discover how they are made, including curling stones, refrigerators, aluminium baseball bats and opalescent glass.
Desert Car Kings: Drive Like a Champion
The Desert Valley crew faces its biggest challenge - a 1950 Studebaker Champion. They have their work cut out with rare parts and urban legends about the car's hidden features.
American Loggers: Man vs Mud
Rainy weather and mud plague business for Pelletier, Inc. Lester barely escapes death in a head-on collision with a pick-up truck. And logging continues at the new winter site.
How It's Made: Bacon/Snowblowers/Luxury Cars
Be entertained and educated in this technological journey which takes you behind the scenes to find out how bacon, snowblowers and luxury cars are made.
Extreme Engineering 6: Gotthard Base Tunnel
The Swiss are spending 18 billion dollars on the Gotthard Base Tunnel - the longest in the world, making journeys through the Alps up to 3 times faster. Danny Forster investigates.