Sky History 2 Sunday

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

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code

Marty Lagina joins Giorgio Tsoukalos to explore the statues, pyramids and structures left behind by one of the most mysterious cultures in the ancient world in Sardinia, Italy

Bobby Bognar examines the making of foods, from the farming to the processing of the food. In this episode he focuses on pizza

Uncovering ancient technology, including a railway built by the Greeks and Chinese wind-powered vehicles

Unexplained phenomena occurring at Big Bend National Park, where a series of incidents has convinced some that secret alien activities are taking place there

Unexplained phenomena occurring at Death Valley National Park, where a series of deaths and disappearances have taken place

Examining apocalyptic prophecies and their plausibility throughout history

Drama-documentary telling the story of the Roman Empire. Emperor Trajan throws his great games of AD 107, and the crowd is treated to a rare spectacle - female gladiators

The story of Zeus, the king of the Greek gods, and how he led the Olympians to defeat the Titans and gain control of the universe

Ted and Nick hit a 1960s bungalow in a celebrity neighbourhood and strike gold with a one-of-a-kind prospecting machine

The Flashback team finds some mint vintage boot-making salvage at an old factory that could be perfect for one of Ted's favourite clients

Lights above the Indian Ocean send a nation into panic, and on Lake Michigan a yacht vanishes. Plus, a small Newfoundland community is devastated by a mysterious explosion

Baffling stories of people who vanished without a trace, including a young Tasmanian pilot chased by unidentified aircraft before disappearing into thin air

Efforts to locate wreckage of the SS Mont Blanc and the SS Imo, which sank in December 1917 after an accidental collision, in Halifax Harbour, Nova Scotia

In the Mojave Desert, there is a structure apparently built to bestow everlasting life. According to the architect, its blueprint is from another world

A reported sighting of 'Bigfoot' by a combat engineer training in the deep forests of north-west Oregon

The actor is shocked by what he discovers as he dives on the wreck of a steam-age ship in north Devon, and a potential early slaver ship in Plymouth

Ross is joined by maritime archaeologist Mallory Haas in Plymouth to deep dive on the wreck site of 36-gun Nelsonian frigate HMS Amethyst, launched in 1799

The validity of historical accounts concerning creatures that can shapeshift from one form to another

Farmer Edwin Fuhr recalls harvesting crops when he saw a metal object hovering in his field. Almost immediately, four identical objects appeared

Cousins Billy and John Smith recall driving in separate cars when they encountered a massive mothership three times the size of a football stadium

An investigation into whether Earth's deepest caves could contain secret conduits to other worlds, or harbour evidence that aliens once visited the planet

On Christmas Eve 1945, five siblings vanished from their family home in West Virginia as a fire blazed. What happened to them remains a mystery

How Inca, Mesopotamian, Persian, Greek, Chinese, Egyptian, Roman and Indus civilisations all still exert deep influences on modern life. This episode focuses on agriculture

Experts make surprising discoveries as they explore the ancient past for evidence of alien overseers

This edition contemplates how much the US and Russia have been working together in preparation for the ultimate extraterrestrial encounter