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How water arrived on Earth, and how it became the essential force behind all life -- from dragonflies to humans.

How water may have driven the evolution of man and created the earliest civilizations; whether the Earth's water supplies can guarantee the future of humans.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Discovering the wildlife and landscapes of Portugal -- including wild horses, storks, monk seals and more -- from forests to coasts.

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

Norway's Bergen line runs from Bergen, Norway, to Oslo, Norway, through the fjords of Western Norway, snowy Hardanger Plateau and deep forests.

Filmed at Italy's Arena di Verona, a tribute concert for Pavarotti gives powerful performances.

Neighbors must help each other after "The Blizzard"; Arthur's teacher moves in in "The Rat Who Came to Dinner.".

Olympia and Otis must call a truce between feuding guests; Ms. O turns headquarters over to an unlikely crew.

The bros become marooned in the world of the mudskipper, a fish that can walk on land.

Benny becomes enamored with the mail carrier, and wonders how she delivers the mail in different weather conditions.

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Daniel goes on a walk with his family and finds all kinds of surprises; Daniel surprises Jodi with a heart-shaped rock.

Phoebe and Jay are asked to bird sit; photo time leads Jay to an outfit disaster.

Abby sees Nina and Charlie tap dancing and tries to keep up, but she doesn't know how to do the moves and follow the rhythm.

Zadie must face her fear and go to the barber for a haircut; Malik discovers smart devices have limitations.

The pals find a box of Golden Crunchdoodles cereal; Donkey, Panda and Bob Dog want to play different things.

Rosie and Javi want to play Abuela's song for Music Night at Tia's Restaurant; Rosie wants to be an inventor.

The kids each tell a spooky tale about a creature in nature who pretends to be scary; after Ari's sandwich grows mold, and he names it Doug, he's determined to learn more about it.

Alma and Uncle Nestor get separated from the rest of the family on the subway; Alma and Junior are excited about their new neighbors.

Serious downsides of coal.

Visiting the Wasaga Beach Cruisers; work is completed on a 1956 GMC.

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

How water arrived on Earth, and how it became the essential force behind all life -- from dragonflies to humans.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

This daily news program, produced by Japanese public broadcaster NHK, focuses on headlines and current events in Japan and other Asian countries. English-speaking presenters also cover other areas of interest, including business news, science and technology trends, sports highlights, and global weather forecasts.

Presenting a round-up of the most recent news and developments from across the world.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Jogging in Hyde Park; British Museum; Victoria and Albert Museum; East End food tour; celebrating London's regeneration.

The history of Kingsbury Grade; a visit to Van Sickle Bi-State Park; taking the Harness Pass to explore Webber Lake and Perazzo Meadows; hiking up Mount Lola in Sierra County.

Exploring Ireland's Ancient East, from the Hill of Tara and Trim Castle to the sacred mounds of Knowth and Dowth.

Father Brown's divine inspiration is called upon when Kembleford comes under threat of an alien invasion.