Horizon - Seasons 21

Episode : 1

The Intelligence Man

1984-01-09

Episode : 2

Microworld!

1984-01-16

Episode : 3

A New Green Revolution?

1984-01-23

Episode : 4

Spies in the Wires

1984-01-30

Episode : 5

Valley of the Inca

1984-02-13

Episode : 6

The Conquest of Parasites

1984-02-27

Episode : 7

Reflections on a River

1984-03-05

Episode : 8

A Normal Face

1984-03-12

Episode : 9

Prisoners of Incest

1984-03-19

Episode : 10

Signs of the Apes, Songs of the Whales

1984-03-26

Episode : 11

Professor Bonner and the Slime Moulds

1984-04-09

Episode : 12

The Mind of a Murderer: The Case of the Hillside Strangler

1984-04-16

Episode : 13

The Mind of a Murderer: The Mask of Madness

1984-04-23

Episode : 14

A Cruel Inheritance

1984-04-30

Episode : 15

The Malvern Link

1984-05-07

Episode : 16

Contented Cows and Other Animals

1984-11-05

Episode : 17

Picking Winners

1984-11-12

Episode : 18

The Brain Puzzle

1984-11-19

Episode : 19

Global Village

1984-11-26

Episode : 20

Ivan

1984-12-03

Episode : 21

A Mathematical Mystery Tour

1984-12-10

Episode : 22

Supercharged

1984-12-17