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Masters of the Arctic Ice - Preview

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The Arctic is the largest expanse of frozen water on the planet. Two teams of researchers are racing to find out how global warming is rocking the Arctic world - before there's nothing left but water. 8/17/11

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Episodes of PBS Presents20

PBS Presents

A Salute to Downton Abbey

Join host Hugh Bonneville to recall the high points of the series and preview season six.

26:10

PBS Presents

Dick Cavett's Vietnam

Examine the Vietnam War and its impact through interviews on “The Dick Cavett Show."

55:09

PBS Presents

Dick Cavett’s Watergate

The Watergate scandal as seen through the lens of celebrated talk show host.

55:11

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Previews of PBS Presents155

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