Sky History 2 Wednesday

Extended episode exploring suggestions of extraterrestrial influence on Earth. Subjects include actions initiated by the US Department of Defence to study UFO sightings

The revolutionary war gaming tactics to defeat Admiral Karl Dönitz and his Wolf Pack fleets of U-boats in the Battle of the Atlantic during the Second World War

The quest continues as a team of archaeological experts sets out to reveal the secrets and mysteries surrounding the Ark of the Covenant

How a few visionary companies, such as Black and Decker, Milwaukee and DeWalt, created the power tools that addressed America's growing need for speed and efficiency

Hindu god Shiva, the great destroyer. This programme contemplates whether the deity could have been the leader of an extraterrestrial race

Investigations into whether ancient tales of beings with super-human powers could be inspired by extra- terrestrials who came to Earth in the past

Suggs and Stephen Taylor are back on the hunt for more relics from the Second World War, and hope searching a bomb factory site will not yield anything too explosive

Tony Robinson embarks on a four-day walk tracing the story of the Norman invasion of Wales, which he discovers was very different from the victory at Hastings

Alice Roberts explores the Norman period of British history in Winchester. She attempts to storm a castle wearing chain mail and investigates the origins of modern surgery

The Roman Empire was the most powerful economic, cultural, political and military force in the world of its time. This programme explores the sites that defined its dominance

The Ark of the Covenant is believed to possess a mythical power. The team members trace the Ark's destructive path to uncover the truth behind its elusive journey

Ted takes the plunge by starting his own salvage business and gets off to a flyer at an abandoned, treasure-laden wrecking yard

The battle hit a turning point and Donitz unleashed an advanced torpedo to flip the momentum. Roberts and Laidlaw then had to devise a strategy to combat the new threat

Tesla's rivalry with Marconi. In 1893, the two inventors shared a desire to improve things for the world in the realm of wireless communication

A look at UFO sightings, terrifying abductions and other bizarre occurrences, casting new light on historic cases

Seemingly impossible events, such as a family managing to survive a bolt of lightning ripping through their car during a Kansas storm and a bizarre creature spotted on a driveway camera

Dr Fern Riddell and Dr Karen Bellinger look at why the Ark of the Covenant has fascinated adventurers and historians for centuries

Millions have reported encountering shadowy entities around the world who instil fear and even paralysis. Are they imaginary, or otherwordly visitors?

Investigations into whether ancient tales of beings with super-human powers could be inspired by extra- terrestrials who came to Earth in the past

Ted takes the plunge by starting his own salvage business and gets off to a flyer at an abandoned, treasure-laden wrecking yard

Terry Schapert investigates the role of the warrior during the Ottoman invasion of Malta in 1565, during which the Knights of Saint John defended the country from its enemies

The Roman Empire was the most powerful economic, cultural, political and military force in the world of its time. This programme explores the sites that defined its dominance

Alice Roberts explores the Norman period of British history in Winchester. She attempts to storm a castle wearing chain mail and investigates the origins of modern surgery

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence