Sky History2 SkyTV

Military vs. UFOs: The team examine incidents of alleged conflicts between the US Air Force and the RAF, and asking whether these encounters have been covered up. (S1, ep 11)

Part One: Uncover the turmoil of 12th-century Ireland, where Kings vie for supremacy and powerful people drive a rival into exile - who then seeks help from Henry II. (1 of 2)

Part Two: Follow the course of the invasion as Strongbow wins victory after victory, while Henry II arrives to take control of Ireland and grants land to settlers from Britain. (2 of 2)

WWII Warship Wreckage: A giant naval vessel is located on the bottom of the Norwegian Sea, while an ancient reptile-like creature is found in Canada. (S3, ep 10)

Cowboy Country: Scott and Sheldon venture into cowboy country, meeting a collector of 40s-60s cowboy movie and TV memorabilia. (S2, ep 13)

Aliens And Dinosaurs: Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia. Could it suggest that alien species killed off the dinosaurs? (S4, ep 13)

Mystery Of Puma Punku: No one knows who designed and built Bolivia's sophisticated temple complex. Could it have been aliens? Experts investigate. (S4, ep 14)

Discover WWII's most daring breakout stories of courage and cunning: Colditz Castle, The Great Escape and the bold Warburg Wire Job. (S1, ep 1)

Rise of the Bomber: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (1 of 6)

War Without Boundaries: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers. (2 of 6)

Invincible: For more than 260 years, HMS Invincible lay at the bottom of the Solent. Now, archaeologists are diving beneath the waves to learn more about this game-changing ship. (S2, ep 3)

Game of Thrones: Archaeologists conduct a dig at Auckland Castle in Co Durham, which 700 years ago was home to a group of power-crazed bishops. (S2, ep 4)

The Industrial Revolution: The team search for artefacts from the country's first superhighway - the Bridgewater Canal. (S2, ep 5)

Aliens And Dinosaurs: Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia. Could it suggest that alien species killed off the dinosaurs? (S4, ep 13)

Mystery Of Puma Punku: No one knows who designed and built Bolivia's sophisticated temple complex. Could it have been aliens? Experts investigate. (S4, ep 14)

Cold War Warriors: Exploring the Cold War vessels that played pivotal roles in events such as the blockade of Cuba and the Vietnam war. (S1, ep 6)

Secrets And Lies: Learn how Lawrence of Arabia used guerilla warfare against the Ottoman Empire's railways. Also, what secrets lie under New York's Grand Central Station? (S1, ep 6)

Nuclear Near Miss: Machines that would have been used had a stand-off resulted in all-out nuclear war, from the smallest tactical nuke to an experimental flying jeep. (S1, ep 6)

The Pharaoh's Curse: Egyptian royals in the Valley of Kings promise turmoil for anyone who dares to disturb their eternal rest. (S1, ep 5)

Cursed Amethyst: A damned gem, a devilish beast and the downfall of a family for several generations. How long must we suffer for the sins of the past? (S1, ep 6)

Chamber of Secrets: Explore mysterious secrets hidden in tunnels, caves and burial sites, from lost treasures to ancient manuscripts behind walls. (S1, ep 3)

...Mysteries of the Universe. Mysterious Earth: Earth remains a mystery to the billions of people on it. How did it come to exist? And how long will humans call it 'home'? (S1, ep 3)

Aliens And Dinosaurs: Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia. Could it suggest that alien species killed off the dinosaurs? (S4, ep 13)