Smithsonian Channel HDTV (East) (SMITHHD)

Twenty minutes after taking off from Taipei, a China Airlines 747 suddenly disappears from radar. A massive rescue mission is launched. (Repeat).

An aircraft that serves as both a cargo and passenger plane is sent to the Arctic. (Repeat).

The White Pass and Yukon route was built in 1869 to take miners and supplies to the Klondike gold fields, and was the worlds first containerized freight railway. (Repeat).

The world's biggest river-cruising company makes a big splash in the ocean-cruising industry. Visiting southern Spain, Normandy and the canals of Amsterdam, the crew navigates narrow passages and battles rough seas. (Repeat).

The case of Helios Airways 737, in which a passenger flight circling Athens fails to respond to air-traffic controllers. (Repeat).

History's most terrifying air disasters, and the investigations that followed, are revisited and reexamined. (Repeat).

A passenger jet tries to make it to land when it runs into trouble over the Indian Ocean. (Repeat).

Examining two mid-air crashes involving DC-10s in the 1970s. (Repeat).

As Denver air traffic controllers struggle to keep departures on schedule amid heavy snow in 1987, a DC-9 is delayed on the tarmac. When the crew is finally cleared for takeoff, the plane gets only 20 feet off the ground before banking sharply and slamming back down, killing 28 of the 82 people on board. Follow investigators as they uncover why Continental Airlines Flight 1713 crashed in bad weath

The December 1999 crash of Korean Air Cargo Flight 8509 shortly after taking off from London Stansted Airport is recalled. (Repeat).

The 1985 crash of Arrow Air Flight 1285 in Newfoundland, which killed 248 U.S. soldiers returning from the Middle East, is investigated. (Repeat).

A 1977 accident involving Southern Airways Flight 242, a DC-9 that lost power in both engines during a severe thunderstorm. (Repeat).

The 2005 crash of Chalk's Ocean Airways Flight 101 off Miami Beach, which killed 20 people, is examined. (Repeat).

A 1992 crash of an Airbus A320 in the Vosges Mountains in France is recalled. The investigation into the cause led to changes in pilot training and to the design of the plane's cockpit console. (Repeat).

The documentary series about surprise Allied attacks during World War II begins with the story of tells the story of an elite group of British paratroopers who launched a midnight raid to capture Hitler's secret radar. (Repeat).

The D-Day story of Easy Company, which parachuted behind enemy lines in the early hours of June 6, 1944. Their assignment: take out four German howitzers that threatened the Allied troops landing on Utah Beach. (Repeat).

A 1941 British commando raid in Norway on Nazi fish oil factories, which were being used to manufacture nitroglycerin, is recalled. (Repeat).

Recalling Operation Husky, the first invasion of the Italian campaign in WWII. (Repeat).

A 1942 British raid on a Nazi-occupied Libyan harbor is detailed. (Repeat).

Operation Gunnersid, a 1943 attack on the Norsk Hydro Plant in Norway by six Norwegian commandos, is recalled. The plant was being used to produce heavy water, a needed ingredient for nuclear weapons; and the mission was to take the plant offline. (Repeat).

The National Guard attempts a mid-air refuel in a violent windstorm, and the TSA discovers a suspicious package. (Repeat).

A downed pilot makes an emergency call for a helicopter rescue and it's a race to get there in time. (Repeat).

There's a serious threat to airport security and a couple fly out to get married on top of a glacier. (Repeat).

Urgent maintenance to a Boeing 737 Max 9 is needed to avoid flight delays and Customs uncover a smuggling ring. (Repeat).

The documentary series about surprise Allied attacks during World War II begins with the story of tells the story of an elite group of British paratroopers who launched a midnight raid to capture Hitler's secret radar. (Repeat).

The D-Day story of Easy Company, which parachuted behind enemy lines in the early hours of June 6, 1944. Their assignment: take out four German howitzers that threatened the Allied troops landing on Utah Beach. (Repeat).

A 1941 British commando raid in Norway on Nazi fish oil factories, which were being used to manufacture nitroglycerin, is recalled. (Repeat).

Recalling Operation Husky, the first invasion of the Italian campaign in WWII. (Repeat).

A 1942 British raid on a Nazi-occupied Libyan harbor is detailed. (Repeat).

Operation Gunnersid, a 1943 attack on the Norsk Hydro Plant in Norway by six Norwegian commandos, is recalled. The plant was being used to produce heavy water, a needed ingredient for nuclear weapons; and the mission was to take the plant offline. (Repeat).

Viking Long Ship Gefjon visits the great cities of the Danube, Main and Rhine Rivers but the crew must navigate through 67 locks, and face bridges only a few centimetres higher than the ship and river beds that narrow to tight channels. (Repeat).

In the series premiere, Paul Gauguin navigates delicate waters and offers five-star luxury while sailing the coral reefs, mountainous islands, and tropical playgrounds of French Polynesia. (Repeat).

The Ocean Endeavour is a vessel with an ice-strengthened hull and a fleet of zodiacs; and the staff are experts in Arctic ice, wildlife and natural history. (Repeat).

An ocean liner sails through a hurricane. (Repeat).

MSC Divina features Mediterranean design and North American convenience, carrying 4,200 passengers with stops in the Caribbean. (Repeat).

The Norwegian Joy is tailor-made to sail through the daunting waters of Alaska. This 700,000,000 vessel aims to give its passengers an unforgettable experience. (Repeat).

The world's first cruise ship run on liquefied natural gas, AIDAnova visits the volcanic landscape and stunning beaches of the Canary Islands and Madeira. (Repeat).

Viking Sea, an ocean-going vessel that features fine food and Scandinavian décor, is spotlighted. (Repeat).

The crew of the Marina, Oceania Cruises' largest ship, makes a 12-day, five port voyage. (Repeat).

Roald Amundsen tackles the challenges of Antarctica like no other cruise ship with a wave-piercing bow that slices through the Drake Passage, a reinforced hull to protect against ice and a hybrid-energy power plan. (Repeat).

Spotlighting Europa 2, a spacious ship. (Repeat).

The National Guard attempts a mid-air refuel in a violent windstorm, and the TSA discovers a suspicious package. (Repeat).

A downed pilot makes an emergency call for a helicopter rescue and it's a race to get there in time. (Repeat).

There's a serious threat to airport security and a couple fly out to get married on top of a glacier. (Repeat).