Smithsonian Channel HDTV (East) (SMITHHD)

A flyover tour of Iowa. (Repeat).

An aerial tour of Washington state. (Repeat).

Destination "Missouruh" for our crew - and you can help by telling us what we should film there. While the Show-Me State is home to the tallest man-made monument in the US, don't ask us to fly through the Gateway Arch - we just can't get the permits. But there are plenty of other sights: from the Liberty Memorial, to the unique architectural features of the Christ Church Cathedral, all the way to

A flyover tour of the South spotlights its famous landmarks, historical milestones and culture. (Repeat).

A flyover tour of Alaska. (Repeat).

A flyover tour of America's man-made marvels, including the Statue of Liberty and Seattle's Space Needle. (Repeat).

A flyover tour of America's natural wonders, including South Dakota's Badlands and Yellowstone National Park. (Repeat).

Stories of people caught in the path of a powerful tornado that touched down in Oklahoma in 1999. (Repeat).

The 2004 Indian Ocean tsunami, which killed hundreds of thousands of people, is detailed via eyewitness accounts and home videos. (Repeat).

The April 2015 earthquake in Nepal is detailed in this documentary, which features footage of the disaster from a Nepali teen who was filming in Kathmandu when it struck; and from a German mountain climber who filmed the avalanche on Mount Everest. Also: the story of Randall Ercanbrack and his daughter Haley, who survived the initial avalanche while at Base Camp 2 on Everest only for Randall to su

A list of 10 key errors and missteps that were made before, during, and after the 1980 eruption of Mount St. Helens in Washington state. (Repeat).

Within a month of each other, two massive volcanoes erupt and unleash terror in very different ways. (Repeat).

Beneath the spectacular beauty of Yellowstone National Park lies a ticking time bomb...a supervolcano that's overdue for its next eruption. When that day inevitably comes, it will trigger the end of civilization as we know it. See how recent earthquake swarms and other signals of activity have put scientists on high alert for a large-scale super volcanic eruption. (Repeat).

An aerial tour of New England spotlights its beauty and history. (Repeat).

A flyover tour of Texas. (Repeat).

An aerial tour of South Carolina, featuring beaches, the Blue Ridge Mountains and Charleston's Rainbow Row. (Repeat).

A flyover tour of the Big Apple includes its five boroughs, Coney Island and Times Square. (Repeat).

An aerial tour of New Hampshire. Featured: mountains, rivers and colonial villages. (Repeat).

An aerial tour of Massachusetts. (Repeat).

An aerial tour of America's waterways, wetlands, dams and canals. (Repeat).

A flyover tour of Colorado. (Repeat).

A flyover tour of places made famous by influential men and women. (Repeat).

A scenic cross-country flight, from the mountains to the prairies and from sea to shining sea. (Repeat).

A flyover tour of Montana. (Repeat).

A tour of movie sites and locations, including the Manhattan skyline and the Philadelphia Museum of Art. Also: structures that inspired "Citizen Kane" and "The Shining." (Repeat).

A flyover tour of natural wonders, man-made marvels, hidden treasures and places of inspiration. (Repeat).

A flyover tour of Idaho. (Repeat).

A flyover tour of Southern California highlights the region's beaches, deserts, urban cities and culture. (Repeat).

A flyover tour of Kentucky. (Repeat).

A flyover tour of West Virginia. (Repeat).

A flyover tour of Northern California, featuring natural and man-made wonders. (Repeat).

A flyover tour of Wisconsin. (Repeat).

A flyover tour of Arizona. (Repeat).

In a rush to complete their flights, three different flight crews skip key procedures, ignore signs of danger, and make deadly decisions. (New).

A Coast Guard chopper pilot battles winds in a mission that will decide her flying career, a mountain construction project gets an express aerial delivery of materials in Alaska-style, and two bald eagles hitch a first-class rid (Repeat).

In a rush to complete their flights, three different flight crews skip key procedures, ignore signs of danger, and make deadly decisions. (Repeat).

A Coast Guard chopper pilot battles winds in a mission that will decide her flying career, a mountain construction project gets an express aerial delivery of materials in Alaska-style, and two bald eagles hitch a first-class rid (Repeat).

Alaska's aviators fly into the wild for the world's toughest snowmobile race, Anchorage mechanics wrestle with a damaged 737's jet engine, and scientists take to the air to fight back against floods devastating remote communities. (Repeat).

A bush plane resupply mission to homesteader on a frozen lake teeters on the brink of disaster, US Air Force fighter jets battle over the Alaskan tundra, and veterinarians fight winter storms to save a remote village. (Repeat).

A 747 mayday triggers an emergency on Anchorage runways. Then, a young aviator learns to fly to feed her village, military pilots navigate Alaska's icy peaks to be combat-ready, and an extreme surfer flies high to find waves. (Repeat).

A pilot dreams big trying to move a 727 jet cross-country to build his business. Tourists fly into Homer's fishing festival, and bar owner takes to the air for an Alaskan beer run. Engineers fight to stop the corrosion aboard a (Repeat).

An orphaned bear cub flies to a new home, bush pilots bring life-saving medical machinery to a remote village, record snowfall threatens to close down Anchorage Airport for Thanksgiving, and the US Army prepares for airborne war (Repeat).

A breakdown on the Fairbanks runway threatens a heavy-weight military jet's urgent mission. A rookie flight instructor faces a make-or-break flight. An ice-tour pilot races against Alaskan weather, and a bush airline flies a 400 (Repeat).

Featuring wild weather, emergency landings, animal invaders, and pandemic panics at Alaska's Ted Stevens Airport (ANC). (Repeat).

Wild weather, emergency landings, animal invaders, and pandemic panics are witnessed at Alaska's Ted Stevens Airport (ANC). (Repeat).

Wild weather, emergency landings, animal invaders and pandemic panics at Alaska's Ted Stevens Airport (ANC). (Repeat).

The episode features a crisis in a remote Alaskan village; a grounded cargo 737; and alcohol smugglers who keep the pilots and crews at the Ice Airports busy. (Repeat).

Witness wild weather, emergency landings, animal invaders, and pandemic panics at Alaska's Ted Stevens Airport (ANC). (Repeat).

Featuring wild weather, emergency landings, animal invaders and pandemic panics at Alaska's Ted Stevens Airport (ANC). (Repeat).

The holidays bring more passengers, more crime, and more blizzards to the Ice Airport. (Repeat).

A freak storm may freeze the delivery of urgent medical supplies. (Repeat).

A harsh winter cancels flights but can't keep rescue pilots from saving the day. (Repeat).

Follow ace pilots and their customised aircraft as they keep Alaska's isolated areas fed and connected through winter. (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).

An orphaned bear cub flies to a new home, bush pilots bring life-saving medical machinery to a remote village, record snowfall threatens to close down Anchorage Airport for Thanksgiving, and the US Army prepares for airborne war (Repeat).

A breakdown on the Fairbanks runway threatens a heavy-weight military jet's urgent mission. A rookie flight instructor faces a make-or-break flight. An ice-tour pilot races against Alaskan weather, and a bush airline flies a 400 (Repeat).

Witness wild weather, emergency landings, and animal invaders at Ted Stevens International Airport in Anchorage, Alaska one of the world's busiest cargo airports. (Repeat).

A Coast Guard chopper pilot battles winds in a mission that will decide her flying career, a mountain construction project gets an express aerial delivery of materials in Alaska-style, and two bald eagles hitch a first-class rid (Repeat).

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

A suspected toxic leak grounds a 737 at Anchorage International, engine trouble endangers the mid-air refueling of the USAF's most advanced fighter jets in Alaska, and a discovery at airport customs busts a potential smuggling. (Repeat).

A national snowstorm brings US aviation to a standstill, but Anchorage fights through the storm. USAF aircrews endure the toughest survival training on Alaska's North Slope, and a veteran aircraft flies life-saving cargo. (Repeat).

A family-run airline flies emergency supplies to a remote village hit by water pollution. Then, Alaska's biggest cargo airline loads high explosives on a busy runway, and Anchorage's elite pilots come to the rescue of a holiday party. (Repeat).

Record-breaking snow in Anchorage could shut the airport. Then, a novice pilot tests his nerve landing on a frozen lake, and USAF aircrews battle the toughest Arctic survival training. (Repeat).

Hurricane Hunters fly into a storm to save lives in Alaska's bush. Then, a rookie chopper pilot faces dangerous winds, and snowstorms threaten vital combat training for USAF in the Arctic Circle. (Repeat).

Travelers from Anchorage get stranded halfway to an island in the Bering Sea; extreme skaters fly into the wilderness in search of Wild Ice; and Alaska's premium cargo airline fights to deliver a team of huskies. (Repeat).

Koningsdam is Holland America's newest, largest and most technologically advanced ship; sailing the narrow Norwegian fjords on a mega-ship presents numerous challenges for the bridge team. (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).

The Seven Seas Explorer cruise ship is full of marble, granite and almost 500 chandeliers. (Repeat).

At 122,000 gross tons, Celebrity Solstice puts the "mighty" in Mighty Cruise Ships. She carries 1,255 crewmembers and close to 3,000 passengers during her summer journeys along Australia's northern coast, offering ten restaurants, over a dozen bars, a casino, and even a manicured grass lawn. Hop aboard on a luxurious 17-day journey Down Under and explore the country's marvels from Solstice's comfo

Sky Princess is loaded with big tech to get the job done, whether it's sailing into tight ports; battling strong winds and currents; feeding more than 3500 guests; or helping passengers locate their friends on the ship. (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).

The Ghan takes passengers on a three-day, two-night journey through Australia, from Adelaide in the south to Darwin in the north; the Pichi Pichi Railway offers passengers a trip on an original steam locomotive train. (Repeat).

Japans Tokaido Shinkansen, known as the bullet train, operates on a dedicated railway line at up to 285 km/h. (Repeat).

Exploring Lima and its amazing scenery and engineering. (Repeat).

Spotlighting Le Boreal, a cruise ship built to survive severe weather conditions, including towering waves. (Repeat).

Technologies and amenities on the cruise ship Oasis of the Seas. (Repeat).

Season 6 opens with a look at the cruise ship Crystal Serenity. (Repeat).

The Diamond Princess carries nearly 2,700 passengers to some of Japan's most iconic cities. (Repeat).