Sky History 2 HD Thursday

Suggestions of cover-ups over the fact extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Giorgio Tsoukalos draws on evidence from past series as he asks whether extra-terrestrials could have introduced the Greeks and Egyptians to electricity

How, after being sentenced to a lengthy term for getting caught up in a marijuana bust, Quawntay Adams determined to escape his maximum-security cell

Experts seek a lost garden planted in 1592 as part of a three-day party commemorating the defeat of the Spanish Armada, an event attended by Elizabeth I

A look at the silent threat of submarines, from tests in the River Thames, to the German's deadly U-boat attacks in the Second World War

Suggestions of cover-ups over the fact extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Giorgio Tsoukalos draws on evidence from past series as he asks whether extra-terrestrials could have introduced the Greeks and Egyptians to electricity

A daring prison break, engineered by former teacher Colonel Thomas Rose. It freed hundreds of captured Union soldiers during the American Civil War

Raksha Dave and Alex Langlands join a team from Reading University at a site in Silchester, near Reading, as they examine one of the best-preserved Roman sites in Britain

A computer generated re-creation of the events of 1944, in which the US Carrier Task Force forged a path through the Pacific to assault enemy bases at Kwajalein and Truk Lagoon

The team examines skulls from the site of the 1499 battle that saw Switzerland win its independence from the Holy Roman Empire, and which changed the nature of medieval warfare

The secret nuclear facilities built by the US in 1939 designed to beat Hitler in the race to create an atomic bomb

After thriving for three centuries, the Celts turned from traders into proven warriors, weapon-masters and metal artists in a time that became their golden age

Investigating unusual patterns in an English field that could be an alien message, and a secret military facility in the Nevada desert

The unexplained loss of 117 English men, women and children who came ashore on Roanoke Island in 1587 to establish a permanent English settlement in the New World

The experiences of Charles 'Peewee' Goldsmith, a kickboxing heavyweight who joined the Angels, only for them to turn against him

Deadly toxins are unleashed, lacing the world's lakes and rivers with acid. Plus, without human intervention, Niagra Falls faces a surprising fate

Paranormal activity inside medical buildings. A police constable investigates an old nurse's ward, an investigator is tormented by a spirit, and a young girl hears voices

Suggestions of cover-ups over the fact extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Giorgio Tsoukalos draws on evidence from past series as he asks whether extra-terrestrials could have introduced the Greeks and Egyptians to electricity

Theorists investigate whether extraterrestrials might have inspired Adolf Hitler to embark on a crazed quest for global domination, and try to track down the Fuhrer's alien secret

A computer generated re-creation of the events of 1944, in which the US Carrier Task Force forged a path through the Pacific to assault enemy bases at Kwajalein and Truk Lagoon

The team examines skulls from the site of the 1499 battle that saw Switzerland win its independence from the Holy Roman Empire, and which changed the nature of medieval warfare

The secret nuclear facilities built by the US in 1939 designed to beat Hitler in the race to create an atomic bomb

Experts scrutinise the paintings, journals and technical drawings of Leonardo Da Vinci to establish whether they hide evidence of extra-terrestrial beings