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Seasons 11-15 | Seasons 1-10

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Season 15 (2005)

Surgical Slimmers
WATCH online   Premiered January 19, 2005
In spite of the risks, people are lining up to solve their weight problems in the operating room. And if the latest device -- an implantable stomach "pacer" -- works out, millions more will be taking the surgical way out.
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Cars That Think
WATCH online   Premiered January 26, 2005
The fully automatic car may be down the road a ways, but cars that do your thinking for you are just around the corner -- they watch out for hazards, they listen to you, they read your lips, they even know when you're distracted.
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Going Deep
WATCH online   Premiered February 2, 2005
A look back at the decades of effort that culminated in the deep sub Alvin reaching the ocean floor, and a look forward to what's next now Alvin's retiring.
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Chimp Minds
WATCH online   Premiered February 9, 2005
A visit with an engaging if unruly bunch of cousins that we formally broke up with about 6 or 7 million years ago - with whom we share almost all of our genes but not a lot of our lifestyle. Why the difference? Maybe it's in how we learn.
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Hot Planet - Cold Comfort
WATCH online   Premiered February 16, 2005
So you think global warming won't affect you? Wait until the great Atlantic Conveyor shuts down. And find out what's already happening in Alaska.
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Hydrogen Hopes
WATCH online   Premiered February 23, 2005
Hydrogen may be the fuel of the future, but what will it take to safely and efficiently make the transition from today’s fossil fuels?
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Hidden Motives
WATCH online   Premiered March 2, 2005
If you think you know why you do things, you're probably wrong. How does the unconscious mind determine human behavior?
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The Secret Canyon
WATCH online   Premiered March 30, 2005
The best kept secret of American archaeology is now revealed – an entire canyon of perfectly preserved 1,000-year-old remains.
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Cybersenses
WATCH online   Premiered March 6, 2005
Replacement synthetic senses for people are now a reality. Children as young as 12 months are already getting artificial hearing - while the first trials of electronic retinas for the blind are just beginning.
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Robot Pals
WATCH online   Premiered April 13, 2005
To be really useful, robots need to behave as cooperative partners rather than mindless machines. We'll meet three robots - including a future member of an astronaut team - that are trying to better understand us.
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Season 14 (2003-2004)

Losing It
WATCH online   Premiered January 30, 2004
Scientists try to figure out the body's complex weight-regulation system, while Alan and 10 volunteers try to shed unwanted pounds.
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Don't Forget
WATCH online   Premiered May 11, 2004
Scientists attempt to unravel the mysteries of memory -- how we make them, where they come from and why some slip away.
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Future Car
WATCH online   Premiered May19 , 2004
Alan visits the research labs and testing tracks of the Big 3 automobile makers to find technologies that will fuel the cars of the future.
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Hot Times in Alaska
WATCH online   Premiered June 15, 2004
Melting glaciers, dying forests, and disappearing lakes; Scientists explain why warmer temperatures are cause for alarm.
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The Dark Side of the Universe
WATCH online   Premiered June 22, 2004
New discoveries about Dark Matter and Dark Energy have astronomers wondering if ours is but an infinity of universes.
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Coming Into America
WATCH online   Premiered July 30, 2004
Who were the first Americans? New discoveries and techniques for dating have archeologist rethinking what they know-- and rewriting history.
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Season 13 (2002-2003)

Unearthing Secret America
WATCH online   Premiered October 8, 2002
Archaeologists shed new light on life in colonial America.
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Make Up Your Mind
WATCH online   Premiered October 15, 2002
Scientists look to the brain's frontal lobe as the seat of personality.
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The Intimate Machine
WATCH online   Premiered October 22, 2002
Scientists blend technology with sociology to make our machines more fun to use.
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Forever Wild
WATCH online   Premiered November 5, 2002
Scientists scramble to understand the intricate natural systems on which all life depends—before it's too late.
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Mysteries of the Deep
WATCH online   Premiered November 26, 2002
Scientists unlock secrets from the last frontier on Earth - the ocean depths.
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Deep Crisis
WATCH online   Premiered January 28, 2003
Investigating the past, present and uncertain future of the ocean's long-distance travelers -- salmon and tuna.
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The Wonder Pill
WATCH online   Premiered February 18, 2003
Scientists attempt to untangle and harness the mysterious power of the placebo affect.
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Calls of the Wild
WATCH online   Premiered April 1, 2003
Researchers listen in on animal communication as birds, bees, bugs, bats and elephants flirt, eavesdrop and even give directions.
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You Can Make It On Your Own
WATCH online   Premiered April 8, 2003
From scientists to musicians, people are using technology in creative new ways: converting the digital to the tangible.
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Worried Sick
WATCH online   Premiered April 8, 2003
The "fight or flight" response to stress once helped us evade predators, but its long term effects can get us into an different kind of trouble - ill health.
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Season 12 (2001-2002)

Pet Tech
WATCH online   Premiered October 16, 2001
Where the worlds of hi-tech and the family pet converge. Alan trains a virtual dog and discovers Internet links for lonely parrots.
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The Gene Hunters
WATCH online   Premiered October 23, 2001
Alan meets some of the brightest and most charismatic scientists hunting genes.
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Dead Men's Tales
WATCH online  

Premiered October 30, 2001
Meet the scientists who combine high-tech tools and old-fashioned sleuthing to bring the past alive.

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Alien Invasion
WATCH online  

Premiered November 6, 2001
Globalization means increasing threats from alien species of plants, animals, insects and diseases.

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Growing Up Differnet
  Premiered November 13, 2001
Alan meets some children who face challenges far beyond the usual stresses and strains of growing up.
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On the Ball
WATCH online   Premiered March 19, 2002 Alan Today's technology can give athletes the edge, aid officials and enhance the spectator's experience of the game.
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Beneath the Sea
WATCH online   Premiered May 14, 2002
New technologies and pioneering scientists have opened up the farthest reaches of the ocean.
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Games Machines Play
WATCH online   Premiered May 21, 2002
Skilled science students put their ingenious creations to the test while competing for the top prize.
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Body Building
WATCH online   Premiered May 28, 2002
In the booming new field of bioengineering, remarkable advances are being made in the making and replacing of human body parts.
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A Different Way to Heal?
WATCH online   Premiered June 4, 2002
"Alternative" medicines are a growing, multi-billion dollar industry. But do they hold up under scientific scrutiny?
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Season 11 (2000-2001)

Changing Your Mind
WATCH online   Premiered November 21, 2000
Some of the nations top neuroscientists uncover new evidence of our brain's ability to change.
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SuperPeople
WATCH online   Premiered November 28, 2000
Discover the science behind people who push themselves to the limits of human performance.
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Life's Really Big Questions
WATCH online   Premiered December 19, 2000
How did life arise on Earth? What separates humans from apes? Will machines one day invent themselves? Learn more here.
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Affairs of the Heart
  Premiered January 23, 2001
Learn about advances in the repair and replacement of the hard-working heart.
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Life's Little Questions II
  Premiered January 30, 2001
Why can't you tickle yourself? Is laughter uniquely human? These little questions might have some big answers.
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Wild Places
WATCH online   Premiered February 6, 2001
Alan Alda learns that sometimes saving endangered species requires restoring whole ecosystems.
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The Bionic Body
  Premiered March 27, 2001
Researchers are uniting biology and technology to give hope to the paralyzed.
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Chimps R Us
WATCH online   Premiered April 3, 2001
Get to know chimpanzees, how they socialize with each other, new dangers they face, and just how similar our species truly are.
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Flying Free
WATCH online   Premiered April 10, 2001
Join aviation engineer Paul MacCready and Alan Alda as they test fly a variety of unconventional planes.
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Fat and Happy?
WATCH online  

Premiered May 1, 2001
Alan Alda explores the real science behind fad foods, eating habits and lifestyles.

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