Discovery HD

How do they grow America's only freshwater pearls in Tennessee? Plus, what secrets are behind how the world's sharpest knives are made.

How do they turn root vegetables into sweet sugar? How do they make feather dusters? And, how do they make billions of balloons to keep parties popping.

Jimmy brings a banged up Vauxhall Viva back to the workshop. He reckons this unpopular 1970s family car can be transformed into something stylish.

The team take on their first ever EV build as they attempt to mount a Tesla battery powered electric powerplant inside a classic: the 'Cinquecento,' or Fiat 500.

Freddy takes on a solo mission with a father-son team in the Yukon. His fixes will determine if this family can mine together for another season.

The guys travel to British Columbia to save a recluse miner living off grid. With snow approaching, can he focus on catching fine gold.

Heavy D powers up with his next SEMA build: a 6x6 with a custom full-track assembly. And, Diesel Dave adds the finishing touches to his dream El Camino.

Heavy D converts a Vietnam-era bridge boat into the world's only diesel-powered surf boat. Then, the guys head to California to track down a rare Excursion.

Sig devises a way to speed up his crew. Wild Bill promotes Landon to the wheelhouse while he goes under the knife. Keith helps Jack but is suspicious.

Mother Nature blows back as Landon embarks on his first solo mission. Sig fishes in 20-foot seas as ferocious tides endanger John's crewmen.

Putty knives, garage doors, electric motors and wool. More everyday objects are examined as we find out how they were made.

Toothpicks, acrylic bathtubs, helicopters and beer. More objects are put under the microscope as we find out how they were made.

Nails, staples, safety glasses, fabrics and bicycles are put under the microscope to find out how they were made.

Kayaks, safety boots, electronic signs and cereal. More everyday objects are put under the microscope as we find out how they were made.

All The Smoke Or Going Broke. Matt must turn BBQ smokers into big bucks at a Texas-sized mess in Houston. At a second job, a massive termite infestation could eat the profits.

Matt hunts for rare liquor, hand-rolled cigars and vintage drums in two California hoards. A baseball pennant misprint could be a huge score.

Mike's out for adventure with a 1970 Ford Bronco. When they find it's riddled with rust, Mike sets out to save the project from disaster while Edd keeps his cool.

Mike and Edd have a powerful and luxurious 1983 Mercedes 500 SEC to restore. Can the boys return this car to its former glory and still eke out a profit.

Rick goes on a midnight run to stake new ground for his empire. While fixing Monster Red, he discovers she's hiding a surprising amount of gold.

In the definitive guide, miners reveal exactly where to find gold all over the world, from creeks to glaciers and even on beaches.

Josh Gates searches Cote d'Ivoire, West Africa, for a missing American military plane from World War II, and its crew of 18 members.