Discovery Channel HD Friday

A look at how customised knee replacements, leaf springs and lavender oil are made

The development of manufacturing processes behind cast Iron stoves, ultralight aircraft, snow groomers and rubber bands

The Kilchers find themselves ill prepared for winter's sudden arrival, and the family's cattle - led by Otto and Charlotte - face a arduous trek along a cold and deadly path

Atz Lee turns to a veteran homesteader for some much-needed help. Plus, the Kilchers join forces to protect Shane's cabin

The team wade in the water to save a dilapidated springhouse. Johnny and Tim go exploring while Mark and Graham clean up the spring

The team take the 100% cabin to South Carolina where they rebuild it as a hunting cabin. They also work with the client's kids to build a camping cabin

Mike and Elvis have one of their toughest challenges yet: can they make an Audi RS6 estate car faster than a sports car? Elvis has doubts after a hazardous test drive

Mike gambles on a Ford P100 imported from South Africa to Scotland. But it's hit with a series of problems - and will it cope with the UK's weather and roads?

The Raneys find a Montana homestead struggling through food, predator and power problems. Marty and Matt enlist a community of firefighters to help

In Arizona, a miner gambles his retirement to secure a legacy for his son. The gold duo must fix his innovative 'dry washer' to save the mine

Freddy and Juan must revive a 50-year-old wash plant in Montana's mountains, where a mining family must turn a profit to save the business

A family builds their own underground home in the hills of Virginia. With shipment delays and severe weather, can they make their dream a reality?

A '68 RS SS Camaro has not run in more than 20 years, but now it is time to turn the former cover car into a 1,200 horsepower street car

Mike Brewer and Marc Priestley help farmer Tom trade up an old Jaguar and a tractor to a DeLorean, but with a £30,000 price tag it won't be an easy task

For Dustin and his crew, exhaustion and lack of gold at The Wall pushes them to the boiling point. Dustin is forced to take drastic action

Phil and Heather journey into the Kentucky wilderness, searching for intelligent sasquatches who seem always to be one step ahead of them

Kish, Iraq, lies at the cradle of human civilisation. Experts investigate the buried secrets of this lost city to uncover the first origins of royalty

A shipment of animal feed from South America delivers a collection of questionable bags. A tragedy lands at Barcelona Airport which shocks and repels officers

At Madrid Airport, a Chinese couple's huge amount of luggage raises suspicion. The border police try to catch a catch a criminal gang breaking over the Gibraltarian frontier

Russell uses a robotic dog to explore an abandoned mine and discovers some unusual evidence. Bryce follows up on a terrifying 60-year-old Bigfoot encounter

Phil and Heather journey into the Kentucky wilderness, searching for intelligent sasquatches who seem always to be one step ahead of them