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Awakening the Frozen Addicts

Episode number: 1

Overview: Horizons presents a report on a daring Swedish operation that transplants foetal tissue into the brains of Parkinson's disease sufferers.

Cheating Time

Episode number: 2

Overview: Horizon investigates the current benefits and disadvantages of Hormone Replacement Therapy (HRT).

TB - The Forgotten Plague

Episode number: 3

Overview: This Horizon episode is about the new and terrible threat from tuberculosis which kills more people than any other infection.

No Ordinary Genius (1)

Episode number: 4

Overview: This is the first part of a two-part Horizon series presenting a portrait of Richard Feynman, the American Nobel Prize winning physicist.

No Ordinary Genius (2)

Episode number: 5

Overview: This is the second part of a two-part Horizon series presenting a portrait of Richard Feynman, the American Nobel Prize winning physicist.

Mars Alive

Episode number: 6

Overview: This Horizon episode attempts to answer the question if it will be possible to 'terraform' Mars by creating a new atmosphere, and then adding water and plants to make the planet habitable.

Suggers, Fruggers and Data-Muggers

Episode number: 7

Overview: Horizon investigates how market research, opinion polls, TV ratings, and consumer surveys have got it disastrously wrong. Commercial decisions depend increasingly on this information, but just how good is that information?

The Pyramid Builders

Episode number: 8

Overview: This Horizon documentary looks at how the ancient Egyptians built the pyramids without the use of the wheel, ramps, or levers.

Here Be Monsters

Episode number: 9

Overview: This documentary by Horizon looks at how the Hubble space telescope is uncovering evidence of black holes in our distant galaxies.

Iceman (Update)

Episode number: 10

Overview: This is a Horizon update to the story of the Stone Age man found frozen in an Alpine glacier in 1991.

Whatever Happened to Star Wars

Episode number: 11

Overview: Horizon shows how American scientists struggled to fulfil the dreams which challenged fundamental scientific laws.

Resurrecting the Dead Sea Scrolls

Episode number: 12

Overview: In this episode, Horizon examines the latest scientific evidence about the Dead Sea Scrolls.

Dante Goes to Hell

Episode number: 13

Overview: Horizon presents the story of a robot named Dante, who goes into an active volcano in Antarctica to find out if volcanoes contribute to the ozone hole in our atmosphere.

Ghosts in the Dinosaur Graveyard

Episode number: 14

Overview: Follows a team of archaeologists led by Michael Novacek as they try to retrace the steps of an expedition launched by the American Museum of Natural History in the 1920's. The original expedition sought the origins of humanity but instead came across a virtual graveyard of the dinosaurs.

The New Alchemists

Episode number: 15

Overview: Horizon reports on scientists who are planning smart aircraft wings and smart buildings that can sense earthquakes.

Allergic to the 20th Century

Episode number: 16

Overview: In this episode, Horizon examines Asthma, the illness that is the most common condition of the developed world.

Wot U Looking At?

Episode number: 17

Overview: Horizon looks at causes of violence and asks psychologists to interview men and boys with a record of violence.

The Electronic Frontier

Episode number: 18

Overview: In this story, Horizon explores the endless stream of digital information available on demand to the public, but do we need, or even want it?

A Vital Poison

Episode number: 19

Overview: Horizon describes how researchers discovered that a lethal gas, called nitric oxide, was behind some of the most basic functions of our bodies.

Chimp Talk

Episode number: 20

Overview: This documentary by Horizon looks back into the 1980's where the work of pioneer researchers trying to determine if chimpanzees could understand language was attacked as charlatanism. Now the public opinion has moved back in favour of the idea that apes can indeed talk to us. The program looks at the latest developments in the chimpanzee language laboratories in America.

Life is Impossible

Episode number: 21

Overview: Horizon investigates how life began on Earth. Did it evolve on land surfaces on Earth, in the sea, or in space?