Nat Geo HD Schedule, Today (United Kingdom)

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)

Mack Truck: A peak inside the factory that makes the most durable heavy-duty trucks and engines in the world.

Connecticut Ghost Town: Follow shrewd scavengers and refurbishers as they search long-abandoned buildings for items of high value or huge historical importance. (S1, ep 9). All Ages.

Salsa, Pralines, & Buffalo Sauce: Discover salsa verde's key ingredient, satisfy your sweet tooth with pecan pralines and learn how a tangy sauce put a snack on the map. U. (S2, ep 22)

Fig Newmans & Organic Butter: Feast your eyes on a 80-feet long Fig Newton, find out what makes Wisconsin butter so special and visit a New Jersey candy factory. U. (S2, ep 23)

Itchy Trigger Finger: Sean and his crackerjack team of military experts evaluate a medieval joust, a 17th century rapier, and two guns that don't appear to have triggers. All ages.

Hitler's Buzzsaw: Adrian finds and fires a German machine gun, capable of shooting up to 1,500 bullets per minute. Hammer unearths some amazing letters from the Civil War. All ages.

Here We Goat Again: An adorable goat named Dexter has blood in his urine. Dr K suspects a urinary infection and wants to take an ultrasound to see what's going on. RATING: NU7 (S1, ep 10)

Teenage Mutant Leopard Turtle: Dr T treats Leo, a tiny leopard tortoise who is having trouble breathing, and Dr K meets Romeo, a Nigerian Dwarf goat who won't pee. RATING: NU12 (S1, ep 11)

Teleshopping.

Fig Newmans & Organic Butter: Feast your eyes on a 80-feet long Fig Newton, find out what makes Wisconsin butter so special and visit a New Jersey candy factory. U. (S2, ep 23)

Tea, Hoisin & Ice Cream Cookies: Learn the art of teamaking, discover Chinese astronauts' favourite hoisin sauce and take a bite out of a 95-year-old San Francisco tradition. U. (S2, ep 24)

The Emiliano Sala Tragedy: A plane carrying footballer Emiliano Sala vanishes over the English Channel, but questions are raised when investigators find the wreckage. U. (3 of 10)

Experts delve into the creepy concept of crop circles. Could these strange patterns really be messages from another world or are they just elaborate hoaxes? All Ages.

Alexander the Great: Archaeologists investigate Egypt's legendary pharaoh, Alexander the Great. The teams explore catacombs and temples, searching for his legacy. U.

Danish Dilemma: Tim Shaw and Fuzz Townshend head to Denmark to salvage a 1968 Volvo Amazon and get it back on the road before it is too late. (S2, ep 8) RATING: AA

Mega Millions Meth Stash: CBP Laredo discovers 560kg of liquid meth hidden in paint cans, and HSI Atlanta finds an air conditioner filled with meth. RATING: NU12 (S3, ep 5)

Deadly Go Round: Investigators examine the debris of China Airlines Flight 140, which crashed into the ground at Japan's Nagoya Airport in 1994. U. (S17, ep 9)

Atlantis: Experts untangle a web of controversies, alleged sightings and academic opinion to cast new light on the mystery of Plato's lost city. Did Atlantis really exist? All Ages.

Drain Chicago: Draining Lake Michigan uncovers Chicago's secret history and exposes a catastrophe that killed 300 people and reveals an engineering marvel. RATING: AA

Join Tim Shaw and Fuzz Townshend for more secret fix-ups. They transform a rusty old Volvo P1800... with a little help from Sir Roger Moore. (S4, ep 3) RATING: AA

Mysteries of the Sphinx: Delving into one of the world's most enduring mysteries, archaeologists try to unravel the riddles of the Great Sphinx. RATING: AA

Grounded: Boeing Max 8: Indonesian investigators must determine why a Boeing 737 Max8, one of the best-selling new airplanes on Earth, plunged into the Java Sea. RATING: NU 7

Hitler's British Invasion Plan: As the Nazi war machine reaches the English channel, Hitler's bold bid to destroy Britain's air power and land troops in southern England begins. All ages.

Battle of the Atlantic: Told from a unique aerial perspective, discover the story of the longest military campaign of World War II as the Nazis attempt to starve Britain. U.

Sicily to Anzio: Travel with soldiers from different Infantry Divisions through the Italian Campaign, as key figures reflect on the grisliest battles. 7+. (1 of 2)

Lockerbie: Documentary looking at the tragic circumstances of the bombing of Pan Am Flight 103, which was the largest terrorist attack on Americans before the events of 9/11. RATING: AA