Watch S1, EP3: The Great Barrier Reef for $0 Today
The Great Barrier Reef is so big it can be seen from space.
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S1, EP1 "Coral Cities"
The complex ecosystems of reefs are the lifeblood of the Pacific Ocean.

S1, EP2 "Bays"
Of the Pacific's 25-thousand islands, roughly two-thirds are in the Coral Triangle.

S1, EP3 "The Great Barrier Reef"
The Great Barrier Reef is so big it can be seen from space.

S1, EP4 "Islands"
Across the Pacific, long chains of atolls support life on the remnants of ancient volcanoes.
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Tom Hanks narrates a 10-episode television event from the executive producers of Planet Earth, exploring the extraordinary worlds and wildlife of North and South America. Scored by composer Hans Zimmer, the breathtaking journey follows amazing creatures living in their natural habitats across the supercontinent, including diverse terrains like the Atlantic Coast, Mexico, Wild West, Amazon, Frozen North, Gulf Coast, Andes, Caribbean, West Coast and Patagonia. Each location comes alive in never-before-seen footage showing the unique connectedness of the land that millions of people call home.

Aerial America
Some people like to hop in a car to take a road trip across America, visiting as many landmarks as possible along the way. Since such a trek can take a while to complete, taking a flight across America might be a better option for some people. "Aerial America" takes viewers on such a flight, offering rare looks at some of the nation's best-loved landmarks from high in the sky. Cameras capture the history and pageantry of America as they zoom over busy cityscapes and quiet, rural lands. Many episodes focus on a specific state, showcasing highlights of the state's beauty, while others revolve around themes such as the best small towns and natural wonders found in the country.

National Parks: USA
Venturing across world-famous and lesser-known national parks to reveal the diversity and wonder of the United States, from the lush valley floors of Yosemite to the constantly erupting volcanoes of Hawai'i.

Secrets of the Penguins
In Antarctica, emperor penguins reveal secret bonds they need to survive.