National Geographic Channel HD Wednesday

A look at the monarch butterfly's incredible multi-generation migration from Mexico to Canada - a round-trip that none of them lives to complete

A look how certain foods are made in factories, featuring marshmallows and broccoli slaw

A look how certain foods are made in factories, featuring soda and breakfast cereal

Examining the 1974 plane crash during the Vietnam War that claimed the lives of more than 250 people, many of them Vietnamese orphans

The story of British Airways Flight 38, which was on final approach into London Heathrow Airport when it crashed just short of the runway on 17 January 2008

The Silk Road opened up a world of trade for the Scandinavians in the East. Seeking further wealth, the Vikings attacked Constantinople, becoming a threat to the Byzantine Empire

Landscape gardener Darren's 1986 Rover SD1 was once his pride and joy, but when tragedy struck it ended up rotting away in a dirty lock-up

When a salmon truck crashes into a ditch, it kicks off a bad night for Thord. With truck drivers in trouble all over his territory, his team is pushed to the limit

A dramatic reconstruction of how Singapore Airlines flight 006 came to crash at Taiwan's international airport in 2000 after an abortive take-off on the wrong runway

1000 miles from the earthquake's epicentre, the tsunami hits Sri Lanka - before people around the world wake up to the devastating reality

Part one of two. The story of the Nazi youth organisation, which was used to indoctrinate German boys in the 1930s and prepare them for the war Hitler was planning

Fuzz Townshend and Tim Shaw secretly get a classic 1960s Sunbeam Alpine belonging to a former mechanic ready to go back on the road

In the shadow of the Great Pyramid, Dr Mark Lehner and his team of archaeologists unearth what could be the most important royal palace in ancient Egypt

How more than 300 passengers on Air France Flight 358 escaped after the plane veered off a Toronto runway and caught fire in August 2005

Re-creating witch trials from Europe and America through expert analysis, exploring the reasons behind deaths and injustice

Recently recovered film footage of the Zeppelin crash provides a fresh insight into the reasons for the disaster

How Dr Robert Ballard inadvertently located the wreck of the ill-fated liner while conducting a covert investigation for the US Navy during the Cold War

When a turboprop crashes in Papua New Guinea, investigators uncover a deadly flaw in an aircraft used all around the world

SAS commando Chris Ryan tells of how he had to race 200 miles across the desert to evade Iraqi forces when a mission went awry in 1991

At El Dorado International Airport, officers uncover luggage packed with cocaine and a suspiciously heavy shipment. An intoxicated passenger sends police on a wild goose chase

Diego has a new money-spinner on his hands - all he has to do is dismantle an aeroplane - while Rich sees dollar signs when a shop owner offers him 1,000 old mobile phones

The team searches a disused paper factory. However, as the facility has plans to become a museum it remains unclear whether they will be able to acquire any assests

The team members find a valuable Windsor icebox, an Edison phonograph and a secret manual for the Boeing B-52 bomber in an old farmhouse

Discover how to make half a million Egg McMuffins, what it takes to become a professional oyster shucker, and visit the home of America's top-selling kosher wine

Discover a one-man show has grown into a hot-sauce empire, the secret to POM's wonderful pomegranate juice, and an extra special pork tamale

It's baby boom time on Africa's vast Serengeti Plain. One million wildebeest halt their migration to give birth. And there are predators everywhere

The fascinating story of the Christmas crab - a landbound creature that takes an extraordinary annual trip to the ocean