Nat Geo HD Schedule, Fri, 3 May 2024 (United Kingdom)

The Madman: No name, no photo, no fingerprints. All law enforcement knew was his alias, 'El Loco' or 'The Crazy One'. It took six-years to take him down. 16+.

BMW X3: Explore the high-tech factory where BMW builds its 2nd generation X3s and discover why the prestigious German manufacturers moved the production of this model to the US. RATING: AA

Pabst Blue Ribbon Factory: Jay and the team search the former headquarters of Pabst Brewing Company, finding an intriguing blueprint and valuable collectibles. (S1, ep 7). All Ages.

Applesauce & Onion Rings: Discover what a laser beam and applesauce have in common, then go behind the scenes of a factory that produces a billion onion rings every year. U. (S2, ep 18)

Donuts & Pepperoni Rolls: Visit a bakery making millions of donuts a year, meet the team behind pepperoni rolls and take a bite out of these hand-dipped, chocolaty snacks. U. (S2, ep 19)

Da Vinci's Killer Pistol: Sean finds an old wheelock which Leonardo da Vinci allegedly helped to design. If the rumours turn out to be true, it could be worth a fortune. All ages.

Sunken Treasure: The guys head to Colorado for an extravaganza of military collectibles before testing a MAC-10 submachine gun, the iconic weapon of many Hollywood movies. All ages.

Eggs-Cuse Me!: Frida the cockatoo travels three hours to see Dr K about her perpetual plucking habit, and Daisy the babby bunny rushes in with a possible broken leg. RATING: NU7 (S1, ep 6)

Fantastic Mrs Fox: Dr K looks at Lola the cockatiel's dangerously inflamed sinuses. Dr T is concerned that Dinah the Arctic fox may have been poisoned. RATING: AA (S1, ep 7)

Teleshopping.

Donuts & Pepperoni Rolls: Visit a bakery making millions of donuts a year, meet the team behind pepperoni rolls and take a bite out of these hand-dipped, chocolaty snacks. U. (S2, ep 19)

Blondies & Cheddar Cheese: Find out what it takes to make a 5,000-pound monster cheese wheel, before taking a bite out of these irresistible blondies. U. (S2, ep 20)

Deadly Directive: The second fatal crash involving the Boeing 737 MAX 8 in five months occurs when Ethiopian Airlines Flight 302 nosedives, killing everyone on board. All Ages. (1 of 10)

Monsters of The Deep: Experts investigate inexplicable sightings of mystery creatures in the world's lakes and lochs. All Ages.

Secrets of the Lost Pyramids: Archaeologists study the mysterious pyramids that followed the Giza pyramids, unearthing new tombs and chambers to reveal their shocking story. U.

Morris Traveller Mayday: Tim and Fuzz hope to surprise a family whose dreams of restoring a 1968 Morris Traveller were quashed by a run of bad luck. (S2, ep 7) RATING: AA

Express Delivery Ecstasy: CBP finds multiple doses of lethal fentanyl hidden within passenger cars, and CBP Newark searches for an illegal stowaway. RATING: NU12 (S3, ep 4)

Deadly Inclination: Everyone on board was killed when Alitalia Flight 404 crashed into a hill on its way into Zurich. But why was the plane flying so low? U. (S17, ep 8)

Drain Pirate Ships of the Caribbean: Uncover lost shipwrecks and learn how the Caribbean's unique position at the crossroads of empire turned it into the ultimate pirate sea. RATING: AA

No Man's Land: Ran and Joe must say goodbye to the Nile. But not before Joe takes on Lake Nasser's crocodile-infested waters and tries to sail an Egyptian Felucca. (3 of 3) Rating: All ages

Triumph TR7: Tim and Fuzz take on one of the most divisive British sports cars ever made - a Triumph TR7. Can the team help make owner Barry's dream come true? 7+. (9 of 10)

Join Ben Horton and discover mystical wilderness and hidden marvels in Guizhou, China, where every encounter is a story waiting to be told. 7+.

Eleven Deadly Seconds: Approaching Taipei in an intensifying electrical storm, China Airlines Flight 676 falls out of the sky, killing all 196 people on board. But why? U. (10 of 10)

Borderline Tactics: Experts uncover something startling that threatens cargo pilots worldwide when they investigate the crash of a US plane at Guantanamo Bay. (S18, ep 4) RATING: AA

Sideswiped: After taking off with a major storm on the horizon, Copa Airlines Flight 201 disappears from the radar over one of the most remote jungles on Earth. U. (S13, ep 4)

A special forces unit target a notorious Thai-Uzbek sex trafficking ring, fighting to save thousands of vulnerable women from being forced into prostitution by ruthless gangs. All Ages.

Radio Silence: In September 2006, a brand-new business jet collided with a passenger plane over Brazil. Find out why there were no problems reported via radio from either plane. All Ages.