Discovery HD

Who Done It? Josh investigates three baffling mysteries: Meriwether Lewis' death, Dag Hammarskjöld's plane crash and Judge Crater's disappearance.

After exploring the Keyhole Chamber, the team uncovers evidence of another Aztec treasure chamber below Blind Frog Ranch called the Golden Staircase.

Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind the rules of the universe.

Earth is spinning on a tilted axis as it orbits around the Sun. Experts and scientists explain how the planet journeys through the Milky Way.

Part 1. OCC locks and loads as they pay tribute to the troops with a custom bike for the Army National Guard. Then, Senior takes a walk down the aisle with Beth.

Part 2. OCC marches forward with the Army National Guard Patriot Bike. With assembly looming, an eager Jason Pohl has the opportunity to advance his training.

Sold as the world's first sporty luxury car, the Thunderbird sold healthily in its day. Mike is searching for a 57' edition that can make him a profit.

The XJC is a two-door version of the XJ6 four-door saloon. The last Jaguar to be designed by Sir William Lyons, this iconic 'corporate sports car' will attract admirers.

Mike hunts down the cheapest Audi TT Quattro he can find- which is at the end of a 300 mile journey down to Cornwall. Can Edd fix the gearbox and make a profit for them.

Mike wants to splash the cash on a custom bus but Edd favours a more conservative campervan. Edd is an air-cooled expert but will this strategy pay dividends.

Mike is on the lookout for a two-seat roadster with attitude in the form of the original BMW Z1. This zippy sports car could make a tidy profit when Edd gets stuck in.

To celebrate their 100th car Mike and Edd restore a Darracq Type L. Will they be ready in time to face their toughest ever test drive - the London to Brighton Run.

A couple faces sun, snow and a few slip-ups as they race to finish a modern, off-grid lodge overlooking Wisconsin's south shores of Lake Superior.

Construction projects are stressful, especially if they are in the middle of nowhere. Incredible skill is needed to build on tricky terrain.

The Raneys tackle a treehouse cabin on the verge of collapse in Missouri. Misty constructs a greenhouse out of scavenged windows, and Matt builds a workshop.

In Northern California, the Raneys give a masterclass on rebuilding from scratch when they help a family whose homestead was destroyed in a devastating wildfire.

A family in Idaho suffers from a cabin on the verge of collapse and predator threat to 100 chickens. The Raneys set about making it liveable.

A daughter pleads for help from the Raneys to rescue her mother and stepfather whose failing homestead in Arizona faces deadly monsoon floods and a menacing cougar.

The Raneys create their first-ever self-automated homestead in the fierce Alaskan wilderness while firefighters Kim and Casey Boespflug are away on duty.

After Hurricane Helene obliterates a 100-year-old farmhouse in NC, a once self-sufficient family is left with nothing. The Raneys help them rebuild.

The team build a pioneer blacksmith shop made from reclaimed beams, barnwood and rafters to serve as their office breakroom and they get a lesson at the anvil.

In the winter premiere, Sophia joins Sig at the Russian line. When a crab boat goes down, the Wizard is the only vessel close enough to reach it.

Being a truck driver isn't easy: long hours, huge loads and busy roads are just some of the issues they face. Truckers share their journeys.

Finally! A 1948 GMC truck that has been stuck in the back of the shop for the last three years has finally been sold. But picking up where Dave left off is a challenge.

Dave and Kevin take the '67 Coronet, '55 Gullwing and '63 Corvette to a car show in Chicago, where they will compete for street rod of the year.

Dave loves anything VW and finds an awesome deal for a rare Transporter pickup. After modifying it, the real dilemma begins: does he keep it or auction it.

Part 1. OCC are creating a bike for the University of Michigan's Children's Hospital. And the cast of My Name is Earl think of ideas for a chopper.

Michigan Bike/My Name Is Earl Part 2. Mikey unveils the University of Michigan bike at a football game, then the guys go to Hollywood to reveal the My Name Is Earl bike to the cast.

Ever wondered how everyday items such as surgical instruments, ketchup and double-decker buses are made? More common items are put under the microscope to find out.

Ever wondered how everyday items such as light bars, wood model aircraft and metal snare drums are made? More common items are put under the microscope to find out.

Mark Finds His Dream Home Barn. After years of searching, Mark has found the barn home he wants for himself. Mark also visits a barn that has been transformed into a wedding venue.

Mark splits up the crew so they can take care of two separate jobs: a quality log cabin and a tobacco barn with plenty of antique material worth salvaging.

Parker banks his first gold from the Unforgiven cut. One of Rick's rock trucks slides down a ravine, and he tries to broker a season-saving deal with Tony.

Rick's landlord demands 50 ounces of gold by the end of the week. Plus, an unexpected visit to Tony's Indian River claim brings devastating news.

A man who has always dreamed of living off the grid needs to finish his tricky build before winter arrives. He has taken on a huge project in upstate New York.

A man surprises his wife for their wedding anniversary. He secretly builds a holiday home with an L-shaped eco-shell to blend into the surroundings.

After 25 years in a tiny clinic, the team is moving to a new clinic with twice the space. When Dr. Jeff repairs a dog's knee, he makes a special connection with her owner.

Dr. Jeff heads out to a wild animal sanctuary to help an injured tiger. Meanwhile, Dr. Amy tackles exploratory surgery on a cat with a strange appetite.

Find out how wind generators, PVC gloves, thermoformed glass and fire engines are made, as more everyday objects put under the microscope.

Find out how car radiators, filo pastry and cross-country skis are made, as more everyday objects are put under the microscope.

Find out how packaged chicken, electric heaters, pulp containers and video games are produced, as more objects are put under the microscope.

Find out how firemen's boots, garden tools and automated machines are made, as more objects are put under the microscope.

In Hawaii, the Raneys rescue a young family with a crumbling cabin on a homestead infested by slugs carrying a brain-eating parasite.

Tony Jr. merges components from two Hudsons to breathe new life into an old flame. Despite many issues, a '68 Chevelle is transformed by the team.

Chainsaw artist Ella faces an unexpected challenge as she creates a coffee table set on top of three carved foxes for a legendary Leicestershire landlord.

Chase Morrill and the crew save a family's lakeside cabin that has been neglected for the past 25 years - and the original build has some big flaws.

Phil and Heather descend into the Mayan underworld to explore a vast subterranean cave believed to be the realm of menacing, ancient spirits.

In 1918 the SS Princess Sophia mysteriously sank near Juneau, Alaska. Experts look for answers to the shipwreck as a ghost hunter tries to contact her victims.