Debut
Episode: 1x01 | Airdate: Nov 6, 1960 (30 min)
Season 1
The Roar of the Crowd: Brain Surgery
Episode: 1x02 | Airdate: Nov 13, 1960 (30 min)
The Future of Science
Episode: 1x03 | Airdate: Nov 20, 1960 (30 min)
Schizophrenia
Episode: 1x04 | Airdate: Nov 27, 1960
Engineering
Episode: 1x05 | Airdate: Dec 4, 1960
Man as an Environment
Episode: 1x06 | Airdate: Dec 11, 1960
Science Fiction
Episode: 1x07 | Airdate: Dec 18, 1960
A Special Christmas Edition
Episode: 1x08 | Airdate: Dec 25, 1960
The Aurora-Borealis
Episode: 1x09 | Airdate: Jan 1, 1961
Man as an Environment - Human Body
Episode: 1x10 | Airdate: Jan 8, 1961
Kept Alive
Episode: 1x11 | Airdate: Jan 15, 1961
Physics and Games - Laws of Probability
Episode: 1x12 | Airdate: Jan 22, 1961
The Face of the Moon
Episode: 1x13 | Airdate: Jan 29, 1961
Hibernation
Episode: 1x14 | Airdate: Feb 5, 1961
Man and His Environment
Episode: 1x15 | Airdate: Feb 12, 1961
Eclipse
Episode: 1x16 | Airdate: Feb 19, 1961
Animal Communication
Episode: 1x17 | Airdate: Feb 26, 1961
The Speed of Light
Episode: 1x18 | Airdate: Mar 5, 1961
Dr. John Zubek
Episode: 1x19 | Airdate: Mar 12, 1961
The Chemical Senses
Episode: 1x20 | Airdate: Mar 19, 1961
The Mohole: Earth's Crust
Episode: 1x21 | Airdate: Apr 2, 1961
Laws of Conservation
Episode: 1x22 | Airdate: Apr 16, 1961
Photosynthesis
Episode: 1x23 | Airdate: Apr 23, 1961
Physics of Clouds
Episode: 1x24 | Airdate: Apr 30, 1961
The Sources of Science
Episode: 1x25 | Airdate: Apr 7, 1961
Season 2
Looking Ahead
Episode: 2x01 | Airdate: Jan 4, 1962
Photography in Science
Episode: 2x02 | Airdate: Jan 11, 1962
To Educate a Scientist
Episode: 2x03 | Airdate: Jan 18, 1962
The Situation is Fluid
Episode: 2x04 | Airdate: Jan 25, 1962
Gallstones
Episode: 2x05 | Airdate: Feb 1, 1962
The Upper Mantle Project
Episode: 2x06 | Airdate: Feb 8, 1962
The Physics of Music
Episode: 2x07 | Airdate: Feb 22, 1962
Man and the Moon
Episode: 2x08 | Airdate: Mar 8, 1962
Low Temperature Physics
Episode: 2x09 | Airdate: Mar 15, 1962
Monkey Curiosity
Episode: 2x10 | Airdate: Mar 29, 1962
Beetles and Bombs
Episode: 2x11 | Airdate: Apr 26, 1962
Thinking About Math
Episode: 2x12 | Airdate: May 3, 1962
The Plague
Episode: 2x13 | Airdate: May 10, 1962
A Science Newsreel
Episode: 2x14 | Airdate: May 24, 1962
Learning
Episode: 2x15 | Airdate: Jun 7, 1962
A Bang-Up Job
Episode: 2x16 | Airdate: Jun 21, 1962
Out of Africa
Episode: 2x17 | Airdate: Jun 28, 1962
Count on Me
Episode: 2x18 | Airdate: Jul 12, 1962
Blood in the Balance
Episode: 2x19 | Airdate: Jul 19, 1962
July 26, 1962
Episode: 2x20 | Airdate: Jul 26, 1962
Season 3
Brainwashing
Episode: 3x01 | Airdate: Dec 2, 1962
Electronics H & I.
Episode: 3x02 | Airdate: Dec 9, 1962
Looking Ahead
Episode: 3x03 | Airdate: Jan 6, 1963
Brainwashing
Episode: 3x04 | Airdate: Jan 13, 1963
Lungs, Legs & Eggs
Episode: 3x05 | Airdate: Jan 20, 1963
From Water to Land
Episode: 3x06 | Airdate: Jan 27, 1963
Chemistry of Salt
Episode: 3x07 | Airdate: Feb 3, 1963
Ear Operation
Episode: 3x08 | Airdate: Feb 10, 1963
Lie Detectors
Episode: 3x09 | Airdate: Feb 24, 1963
Smoking and Lung Cancer
Episode: 3x10 | Airdate: Mar 3, 1963
Science Museum
Episode: 3x11 | Airdate: Mar 10, 1963
Tornadoe
Episode: 3x12 | Airdate: Mar 24, 1963
The Descent of Man
Episode: 3x13 | Airdate: Mar 24, 1963
Isaac Newton
Episode: 3x14 | Airdate: Apr 7, 1963
New Atoms for Old
Episode: 3x15 | Airdate: Apr 14, 1963
Car Crashes
Episode: 3x16 | Airdate: Apr 21, 1963
Bird Migration
Episode: 3x17 | Airdate: May 5, 1963
Fact & Fiction
Episode: 3x18 | Airdate: May 12, 1963
Code of Life
Episode: 3x19 | Airdate: May 19, 1963
The Chemistry of Bread
Episode: 3x20 | Airdate: May 26, 1963
The Infra-Red
Episode: 3x21 | Airdate: Jun 2, 1963
Human Overpopulation
Episode: 3x22 | Airdate: Jun 9, 1963
Mars
Episode: 3x23 | Airdate: Jun 16, 1963
Spiders
Episode: 3x24 | Airdate: Jun 23, 1963
Hypnosis
Episode: 3x25 | Airdate: Jun 30, 1963
Season 4
Physics in Sports
Episode: 4x01 | Airdate: Apr 19, 1964
Einstein, Man & Mathematician
Episode: 4x02 | Airdate: May 5, 1964
About the Size of It
Episode: 4x03 | Airdate: May 12, 1964
Standards for Comparison
Episode: 4x04 | Airdate: May 19, 1964
Excursion Into Hell
Episode: 4x05 | Airdate: May 26, 1964
Surgery for Parkinson's Disease
Episode: 4x06 | Airdate: Jun 2, 1964
Science in Sports
Episode: 4x07 | Airdate: Jun 9, 1964
Lasers
Episode: 4x08 | Airdate: Jun 30, 1964
Blood, Sea and Tears
Episode: 4x09 | Airdate: Jul 7, 1964
Cartography
Episode: 4x10 | Airdate: Jul 14, 1964
The World of Water
Episode: 4x11 | Airdate: Jul 21, 1964
The Way the Ball Bounces
Episode: 4x12 | Airdate: Jul 28, 1964
Immunology
Episode: 4x13 | Airdate: Aug 4, 1964
Season 5
January 1, 1965
Episode: 5x01 | Airdate: Jan 3, 1965
Viruses
Episode: 5x02 | Airdate: Jan 10, 1965
The Quaking Earth
Episode: 5x03 | Airdate: Feb 7, 1965
Pain
Episode: 5x04 | Airdate: Feb 21, 1965
Lies, Damn Lies and Statistics
Episode: 5x05 | Airdate: Feb 28, 1965
The Pacemakers
Episode: 5x06 | Airdate: Mar 28, 1965
Season 6
Animals and Man
Episode: 6x01 | Airdate: Oct 3, 1965
Animals on Land
Episode: 6x02 | Airdate: Oct 10, 1965
Animals in the Water
Episode: 6x03 | Airdate: Oct 17, 1995
Animal Adaptation
Episode: 6x04 | Airdate: Oct 24, 1965
October 31, 1965
Episode: 6x05 | Airdate: Oct 31, 1965
November 7, 1965
Episode: 6x06 | Airdate: Nov 7, 1965
Animals and Food
Episode: 6x07 | Airdate: Nov 14, 1965
Animals as Engineers
Episode: 6x08 | Airdate: Nov 21, 1965
November 28, 1965
Episode: 6x09 | Airdate: Nov 28, 1965
December 5, 1965
Episode: 6x10 | Airdate: Dec 5, 1965
December 12, 1965
Episode: 6x11 | Airdate: Dec 12, 1965
Animal Social Behavior
Episode: 6x12 | Airdate: Dec 19, 1965
December 26, 1965
Episode: 6x13 | Airdate: Dec 26, 1965
January 2, 1966
Episode: 6x14 | Airdate: Jan 2, 1966
January 9, 1966
Episode: 6x15 | Airdate: Jan 9, 1966
January 16, 1966
Episode: 6x16 | Airdate: Jan 16, 1966
Man and Animals
Episode: 6x17 | Airdate: Jan 23, 1966
Season 7
The Sun
Episode: 7x01 | Airdate: Jun 20, 1966
Natural History of the Niagara Gorge
Episode: 7x02 | Airdate: Jun 27, 1966
Air and Water Pollution
Episode: 7x03 | Airdate: Jul 4, 1966
The Battle Against Biting Insects
Episode: 7x04 | Airdate: Jul 11, 1966
Air Conditioning - Natural and Man-Made
Episode: 7x05 | Airdate: Jul 18, 1966
The Physics of Sailing
Episode: 7x06 | Airdate: Jul 25, 1966
Epidemics
Episode: 7x07 | Airdate: Aug 1, 1966
Summer Storms
Episode: 7x08 | Airdate: Aug 8, 1966
Fishing and the Splake
Episode: 7x09 | Airdate: Aug 15, 1966
The Value of Our Parks
Episode: 7x10 | Airdate: Aug 22, 1966
Forest and Fires
Episode: 7x11 | Airdate: Aug 29, 1966
Water on the Level
Episode: 7x12 | Airdate: Sep 5, 1966
Season 8
A Celebration of Swans
Episode: 8x01 | Airdate: May 18, 1968
Canadian Wildlife (2): A Celebration of Swans
Episode: 8x02 | Airdate: May 18, 1967
Canadian Wildlife (3): Arctic Summer
Episode: 8x03 | Airdate: May 25, 1967
Canadian Wildlife (4): Wild Alberta
Episode: 8x04 | Airdate: Jun 1, 1967
Season 9
September 9, 1968
Episode: 9x01 | Airdate: Sep 19, 1968
Thomas Edison
Episode: 9x02 | Airdate: Sep 26, 1968
Human Engineering
Episode: 9x03 | Airdate: Oct 3, 1968
Materials
Episode: 9x04 | Airdate: Oct 10, 1968
Structure
Episode: 9x05 | Airdate: Nov 7, 1968
Communications
Episode: 9x06 | Airdate: Nov 14, 1968
Canals and Tunnels
Episode: 9x07 | Airdate: Nov 21, 1968
Central Power
Episode: 9x08 | Airdate: Nov 28, 1968
Man and Machines
Episode: 9x09 | Airdate: Dec 5, 1968
Land and Water
Episode: 9x10 | Airdate: Dec 12, 1968
Man Aloft
Episode: 9x11 | Airdate: Dec 19, 1968
Portable Power
Episode: 9x12 | Airdate: Dec 26, 1968
Transportation
Episode: 9x13 | Airdate: Jan 2, 1969
Systems Engineering
Episode: 9x14 | Airdate: Jan 9, 1969
Season 10
In the Balance
Episode: 10x01 | Airdate: Sep 24, 1969
Urban Crisis
Episode: 10x02 | Airdate: Oct 1, 1969
Water Pollution
Episode: 10x03 | Airdate: Oct 8, 1969
Air Pollution
Episode: 10x04 | Airdate: Oct 15, 1969
Pesticides
Episode: 10x05 | Airdate: Oct 22, 1969
Danger: Men at Work
Episode: 10x06 | Airdate: Oct 29, 1969
The Ages of Man: A Day in the Life of a G.P. (1)
Episode: 10x07 | Airdate: Nov 5, 1969
The Ages of Man: A Breath of Life (2)
Episode: 10x08 | Airdate: Nov 12, 1969
The Ages of Man: The Attack on Cancer (3)
Episode: 10x09 | Airdate: Nov 26, 1969
The Ages of Man (3)
Episode: 10x10 | Airdate: Dec 10, 1969
The Ages of Man: The Cell (5)
Episode: 10x11 | Airdate: Dec 17, 1969
The Ages of Man: Arthritis (6)
Episode: 10x12 | Airdate: Dec 24, 1969
The Ages of Man: Science Decade (7)
Episode: 10x13 | Airdate: Dec 31, 1969
The Ages of Man: Heart Disease (8)
Episode: 10x14 | Airdate: Jan 7, 1970
The Ages of Man: Transplants (9)
Episode: 10x15 | Airdate: Jan 15, 1970
The Ages of Man: A Definition of Death (10)
Episode: 10x16 | Airdate: Jan 22, 1970
A Sense of Time: The Age of the Universe (1)
Episode: 10x17 | Airdate: Dec 7, 1970
A Sense of Time: The Age of the Earth (2)
Episode: 10x18 | Airdate: Dec 14, 1970
A Sense of Time: The Age of Man (3)
Episode: 10x19 | Airdate: Dec 21, 1970
Continental Drift
Episode: 10x20 | Airdate: May 21, 1970
Sense Substitution
Episode: 10x21 | Airdate: May 28, 1970
Physical Sciences: Stellar Evolution
Episode: 10x22 | Airdate: Jun 4, 1970
Physical Sciences: Making Waves
Episode: 10x23 | Airdate: Jun 11, 1970
Physical Sciences: Energy Conversion
Episode: 10x24 | Airdate: Jun 18, 1970
Physical Sciences: Laser
Episode: 10x25 | Airdate: Jun 25, 1970
Season 11
Audubon
Episode: 11x01 | Airdate: Oct 5, 1970
The Last Stand: Western Mountain Parks (1)
Episode: 11x02 | Airdate: Nov 2, 1970
The Last Stand: The Everglades of Florida (2)
Episode: 11x03 | Airdate: Nov 9, 1970
The Last Stand: Point Pelee (3)
Episode: 11x04 | Airdate: Nov 16, 1970
The Last Stand: The Southwestern Desert (4)
Episode: 11x05 | Airdate: Nov 23, 1970
The Great Lakes (1)
Episode: 11x09 | Airdate: Feb 1, 1971
The Great Lakes (2)
Episode: 11x10 | Airdate: Feb 8, 1971
Population Problems: Everybody's Baby (1)
Episode: 11x11 | Airdate: Feb 15, 1971
Population Problems: Tomorrow's Child (2)
Episode: 11x12 | Airdate: Mar 1, 1971
Who Help Themselves
Episode: 11x13 | Airdate: Mar 15, 1971
Psychiatry: Heavy Night
Episode: 11x14 | Airdate: Mar 22, 1971
Psychiatry: Street Fighting Mad
Episode: 11x15 | Airdate: Mar 29, 1971
Psychiatry: Human Potential
Episode: 11x16 | Airdate: Apr 5, 1971
Wild Africa: As It Was (1)
Episode: 11x17 | Airdate: Jun 28, 1971
Wild Africa: Something New (2)
Episode: 11x18 | Airdate: Jul 5, 1971
Season 12
Banting, Best and Insulin
Episode: 12x01 | Airdate: Oct 4, 1971
Cancer in Canada
Episode: 12x02 | Airdate: Oct 11, 1971
Parkinson's Disease
Episode: 12x03 | Airdate: Oct 25, 1971
November 15, 1971
Episode: 12x04 | Airdate: Nov 15, 1971
November 22, 1971
Episode: 12x05 | Airdate: Nov 22, 1971
The Living Arctic
Episode: 12x06 | Airdate: Nov 29, 1971
December 6, 1971
Episode: 12x07 | Airdate: Dec 6, 1971
December 13, 1971
Episode: 12x08 | Airdate: Dec 13, 1971
December 20, 1971
Episode: 12x09 | Airdate: Dec 20, 1971
The Harp Seal
Episode: 12x10 | Airdate: Jan 3, 1972
January 10, 1972
Episode: 12x11 | Airdate: Jan 10, 1972
January 17, 1972
Episode: 12x12 | Airdate: Jan 17, 1972
January 24, 1972
Episode: 12x13 | Airdate: Jan 24, 1972
January 31, 1972
Episode: 12x14 | Airdate: Jan 31, 1972
The Blue Holes of Andros
Episode: 12x15 | Airdate: May 15, 1972
Season 13
Vanishing Peoples: Lacandones
Episode: 13x01 | Airdate: Nov 6, 1972
The Polar Bear
Episode: 13x02 | Airdate: Jan 8, 1973
Grouse Country
Episode: 13x03 | Airdate: Jan 15, 1973
Ice Lovers
Episode: 13x04 | Airdate: Jan 29, 1973
Think Before You Eat
Episode: 13x05 | Airdate: Mar 5, 1973
Stockholm '72: Politics for Survival
Episode: 13x06 | Airdate: Mar 12, 1973
Cities for People
Episode: 13x07 | Airdate: Mar 19, 1973
Migration: Animals in Cycle
Episode: 13x08 | Airdate: Mar 26, 1973
Old Enough
Episode: 13x09 | Airdate: Apr 2, 1973
Cities for People
Episode: 13x10 | Airdate: Apr 2, 1973
Recycling
Episode: 13x11 | Airdate: Apr 9, 1973
Acupuncture
Episode: 13x12 | Airdate: Apr 16, 1973
Vanishing Peoples: Yanoniami
Episode: 13x14 | Airdate: May 7, 1973
Season 14
Puffins, Predators and Pirates
Episode: 14x01 | Airdate: Nov 26, 1973
The Club of Rome
Episode: 14x02 | Airdate: Dec 3, 1973
Ellesmere Island
Episode: 14x03 | Airdate: Dec 10, 1973
Anybody's Child
Episode: 14x04 | Airdate: Dec 17, 1973
Grouse Country
Episode: 14x05 | Airdate: Dec 24, 1973
The Serious Business of Play
Episode: 14x07 | Airdate: Jan 21, 1974
Out of the Mouths of Babes (1)
Episode: 14x08 | Airdate: Jan 28, 1974
Out of the Mouths of Babes (2)
Episode: 14x09 | Airdate: Feb 4, 1974
Season 15
And God Created Great Whales
Episode: 15x01 | Airdate: Oct 9, 1974
October 23, 1974
Episode: 15x02 | Airdate: Oct 23, 1974
October 30, 1974
Episode: 15x03 | Airdate: Oct 30, 1974
November 6, 1974
Episode: 15x04 | Airdate: Nov 6, 1974
November 13, 1974
Episode: 15x05 | Airdate: Nov 13, 1974
November 20, 1974
Episode: 15x06 | Airdate: Nov 20, 1974
November 27, 1974
Episode: 15x07 | Airdate: Nov 27, 1974
December 4, 1974
Episode: 15x08 | Airdate: Dec 4, 1974
December 11, 1974
Episode: 15x09 | Airdate: Dec 11, 1974
December 18, 1974
Episode: 15x10 | Airdate: Dec 18, 1974
Season 16
Out of the Mouths of Babes (1)
Episode: 16x01 | Airdate: Oct 22, 1975
October 29, 1975
Episode: 16x02 | Airdate: Oct 29, 1975
November 5, 1975
Episode: 16x03 | Airdate: Nov 5, 1975
November 12, 1975
Episode: 16x04 | Airdate: Nov 12, 1975
November 19, 1975
Episode: 16x05 | Airdate: Nov 19, 1975
November 26, 1975
Episode: 16x06 | Airdate: Nov 26, 1975
December 3, 1975
Episode: 16x07 | Airdate: Dec 3, 1975
December 10, 1975
Episode: 16x08 | Airdate: Dec 10, 1975
December 17, 1975
Episode: 16x09 | Airdate: Dec 17, 1975
December 24, 1975
Episode: 16x10 | Airdate: Dec 24, 1975
Season 17
Noah's Park
Episode: 17x01 | Airdate: Dec 22, 1976
Close-up Look at a Coral Reef
Episode: 17x02 | Airdate: Dec 29, 1976
Birthright Newborn
Episode: 17x03 | Airdate: Jan 5, 1977
Children of the Buffalo
Episode: 17x04 | Airdate: Jan 19, 1977
Geriatric Medicine
Episode: 17x05 | Airdate: Jan 26, 1977
The Wind and Its Power
Episode: 17x06 | Airdate: Feb 9, 1977
Funk Island
Episode: 17x07 | Airdate: Feb 16, 1977
Development in the Florida Everglades
Episode: 17x08 | Airdate: Sep 30, 1977
Season 18
The People You Never See
Episode: 18x01 | Airdate: Dec 14, 1977
Pedestrian Malls
Episode: 18x02 | Airdate: Dec 16, 1977
Out of the Mouths of Babes
Episode: 18x03 | Airdate: Jan 13, 1978
Madagascar: Island of the Moon
Episode: 18x04 | Airdate: Jan 25, 1978
The First Inch
Episode: 18x05 | Airdate: Jan 27, 1978
Infertility / Puppets
Episode: 18x06 | Airdate: Feb 1, 1978
Walking Out
Episode: 18x07 | Airdate: Feb 8, 1978
Skin Trade
Episode: 18x08 | Airdate: Mar 31, 1978
Season 19
1978-09-24
Episode: 19x01 | Airdate: Sep 24, 1978
Clockwork Atom
Episode: 19x02 | Airdate: Oct 1, 1978
This Will Do for Today
Episode: 19x03 | Airdate: Oct 8, 1978
Island of Monkeys
Episode: 19x04 | Airdate: Oct 15, 1978
1978-10-29
Episode: 19x05 | Airdate: Oct 29, 1978
1978-11-05
Episode: 19x06 | Airdate: Nov 5, 1978
1978-11-12
Episode: 19x07 | Airdate: Nov 12, 1978
Sleep (1 of 2)
Episode: 19x08 | Airdate: Nov 26, 1978
Dreams (2)
Episode: 19x09 | Airdate: Dec 3, 1978
Charlie
Episode: 19x10 | Airdate: Dec 17, 1978
The Search: Smallpox Eradication
Episode: 19x11 | Airdate: Dec 24, 1978
The Cajuns
Episode: 19x12 | Airdate: Dec 31, 1978
Season 20
Flying Circus of Physics
Episode: 20x01 | Airdate: Oct 24, 1979
Hypnosis / India's Sacred Cows / Ultra Sound Scanner
Episode: 20x02 | Airdate: Oct 31, 1979
Parenthood / Puppets and Surgery
Episode: 20x03 | Airdate: Nov 14, 1979
Contact
Episode: 20x04 | Airdate: Nov 21, 1979
Deep Diving Memory
Episode: 20x05 | Airdate: Nov 28, 1979
Arctic Oil
Episode: 20x06 | Airdate: Dec 5, 1979
Clinical Trials
Episode: 20x07 | Airdate: Dec 12, 1979
Left Brain, Right Brain
Episode: 20x08 | Airdate: Dec 19, 1979
Dust Storms / Oysters / Science Fairs
Episode: 20x09 | Airdate: Dec 26, 1979
Memories from Eden
Episode: 20x10 | Airdate: Jan 2, 1980
Crocodile City
Episode: 20x11 | Airdate: Jan 9, 1980
The Lacandons
Episode: 20x12 | Airdate: Jan 23, 1980
Paul Jacobs and the Nuclear Gang
Episode: 20x13 | Airdate: Feb 6, 1980
Roger Tory Peterson; Portrait of a Birdwatcher
Episode: 20x14 | Airdate: Feb 13, 1980
Galileo
Episode: 20x15 | Airdate: Feb 27, 1980
The Chiricahuas / The Making of Violins / Seal Psychology
Episode: 20x16 | Airdate: Mar 5, 1980
Season 21
Mount St. Helen
Episode: 21x01 | Airdate: Oct 8, 1980
Cystic Fibrosis / Whooping Crane / Cold-Water Survival
Episode: 21x02 | Airdate: Oct 15, 1980
The Bare Necessity / Manatees / Ludhiana
Episode: 21x03 | Airdate: Oct 22, 1980
Tar Wars
Episode: 21x04 | Airdate: Oct 29, 1980
Alternate Car Fuel / Surface Tension / Science Fair
Episode: 21x05 | Airdate: Nov 5, 1980
Chinese Culture (1)
Episode: 21x06 | Airdate: Nov 12, 1980
Modern China (2)
Episode: 21x07 | Airdate: Nov 19, 1980
Survival Instincts of the Insect World / Sickle Cell Anemia
Episode: 21x08 | Airdate: Nov 26, 1980
Invisible Astronomy
Episode: 21x09 | Airdate: Dec 3, 1980
Prenatal Diagnosis of Spina Bifida / Amniocentesis
Episode: 21x10 | Airdate: Dec 10, 1980
One of the Family
Episode: 21x11 | Airdate: Jan 7, 1981
Structure of Birds Eggs / Newfound land Oil
Episode: 21x12 | Airdate: Jan 14, 1981
Poisoned Playgrounds / Charlie
Episode: 21x13 | Airdate: Jan 28, 1981
High Altitude Physiology / The Vision of Galileo / Dust Storms
Episode: 21x14 | Airdate: Feb 4, 1981
February 2, 1981
Episode: 21x15 | Airdate: Feb 11, 1981
Sri Lanka
Episode: 21x16 | Airdate: Feb 18, 1981
Tar Sands
Episode: 21x17 | Airdate: Mar 4, 1981
Blackfly
Episode: 21x18 | Airdate: Mar 11, 1981
Foxes Earth
Episode: 21x19 | Airdate: Mar 25, 1981
April 4, 1981
Episode: 21x20 | Airdate: Apr 1, 1981
Season 22
Reconnective Surgery / Shark Vision / Batteries
Episode: 22x01 | Airdate: Oct 14, 1981
Rabies in Ontario / Island of Coral / Hazards of Microwave Ovens
Episode: 22x02 | Airdate: Oct 21, 1981
Edge of the Cold
Episode: 22x03 | Airdate: Oct 28, 1981
Piano / Frogs / The Atom Smasher / Phonograph
Episode: 22x04 | Airdate: Nov 4, 1981
The Thoroughbred / A Magic Way of Going
Episode: 22x05 | Airdate: Nov 11, 1981
Twins
Episode: 22x06 | Airdate: Nov 18, 1981
Tipping the Scales / Anorexia
Episode: 22x07 | Airdate: Dec 2, 1981
A Natural Turn of Events
Episode: 22x08 | Airdate: Dec 9, 1981
Making It Big
Episode: 22x09 | Airdate: Jan 6, 1982
Jute Plastic / Honeybees / Hildebrand
Episode: 22x10 | Airdate: Jan 24, 1982
A Monster Make / Nuclear War
Episode: 22x11 | Airdate: Jan 20, 1982
Aspirin / Windy Bav / Fluorescent
Episode: 22x12 | Airdate: Jan 27, 1982
Bionic Limbs / Hanuman Langurs / The Monkeys of India
Episode: 22x13 | Airdate: Feb 24, 1982
Tide Mill / Mind's Eye / Snakes
Episode: 22x15 | Airdate: Mar 10, 1982
Season 23
Telidon / Submerged Birds / Tulips
Episode: 23x01 | Airdate: Oct 20, 1982
October 27, 1982
Episode: 23x02 | Airdate: Oct 27, 1982
1982-11-03
Episode: 23x03 | Airdate: Nov 3, 1982
1982-11-10
Episode: 23x04 | Airdate: Nov 10, 1982
Solar Techniques / Fragile Bones / Dial
Episode: 23x05 | Airdate: Nov 17, 1982
1982-11-24
Episode: 23x06 | Airdate: Nov 24, 1982
1982-12-01
Episode: 23x07 | Airdate: Dec 1, 1982
1982-12-15
Episode: 23x08 | Airdate: Dec 15, 1982
Prenatal Diagnosis / Scanning with Sound Waves
Episode: 23x09 | Airdate: Dec 22, 1982
Himalayan Floods
Episode: 23x10 | Airdate: Dec 29, 1982
1983-01-12
Episode: 23x11 | Airdate: Jan 12, 1983
1983-01-19
Episode: 23x12 | Airdate: Jan 19, 1983
1983-01-27
Episode: 23x13 | Airdate: Jan 27, 1983
Gentle Giant / Sewage Treatment
Episode: 23x14 | Airdate: Feb 2, 1983
1983-02-09
Episode: 23x15 | Airdate: Feb 9, 1983
1983-02-16
Episode: 23x16 | Airdate: Feb 16, 1983
1983-02-23
Episode: 23x17 | Airdate: Feb 23, 1983
1983-03-02
Episode: 23x18 | Airdate: Mar 2, 1983
1983-03-16
Episode: 23x19 | Airdate: Mar 16, 1983
1983-03-30
Episode: 23x20 | Airdate: Mar 30, 1983
Season 24
Natation / Diabethese / Glasses Manufacturing
Episode: 24x01 | Airdate: Oct 5, 1983
October 12, 1983
Episode: 24x02 | Airdate: Oct 12, 1983
October 19, 1983
Episode: 24x03 | Airdate: Oct 19, 1983
Japanese Sand Baths
Episode: 24x04 | Airdate: Oct 26, 1983
November 2, 1983
Episode: 24x05 | Airdate: Nov 2, 1983
November 9, 1983
Episode: 24x06 | Airdate: Nov 9, 1983
November 16, 1983
Episode: 24x07 | Airdate: Nov 16, 1983
November 23, 1983
Episode: 24x08 | Airdate: Nov 23, 1983
Natural Turn of Events / Kidney Transplant / Kelp
Episode: 24x09 | Airdate: Nov 30, 1983
December 7, 1983
Episode: 24x10 | Airdate: Dec 7, 1983
Flight Simulators / Beating the Blues
Episode: 24x11 | Airdate: Dec 21, 1983
December 28, 1983
Episode: 24x12 | Airdate: Dec 28, 1983
January 4, 1984
Episode: 24x13 | Airdate: Jan 4, 1984
January 11, 1984
Episode: 24x14 | Airdate: Jan 11, 1984
January 18, 1984
Episode: 24x15 | Airdate: Jan 18, 1984
The Nation Family (2)
Episode: 24x16 | Airdate: Jan 25, 1984
February 1, 1984
Episode: 24x17 | Airdate: Feb 1, 1984
Bring Back My Bonnie
Episode: 24x18 | Airdate: Feb 8, 1984
Decade of Delay / RH Laboratory / Hawaii Telescope
Episode: 24x19 | Airdate: Feb 15, 1984
Gray Whale / Old Diseases in Mummies / Algae as Antipolluants
Episode: 24x20 | Airdate: Feb 22, 1984
Water, Friend or Foe
Episode: 24x21 | Airdate: Feb 26, 1984
Season 25
October 10, 1984
Episode: 25x01 | Airdate: Oct 10, 1984
October 17, 1984
Episode: 25x02 | Airdate: Oct 17, 1984
October 24, 1984
Episode: 25x03 | Airdate: Oct 24, 1984
Human Birth
Episode: 25x04 | Airdate: Oct 31, 1984
Chinese Wall Paintings / Drilling for Oil Between Arctic Ice / Fly Fishing
Episode: 25x05 | Airdate: Nov 7, 1984
Voices in the Wind
Episode: 25x06 | Airdate: Nov 14, 1984
The Right Whale / Communication Between Insects
Episode: 25x07 | Airdate: Nov 28, 1984
Making Moves
Episode: 25x08 | Airdate: Dec 12, 1984
Survival of Salmon
Episode: 25x09 | Airdate: Dec 19, 1984
Dinosaur
Episode: 25x10 | Airdate: Jan 9, 1985
Sailing / CPR
Episode: 25x11 | Airdate: Jan 16, 1985
The Great Lakes
Episode: 25x12 | Airdate: Jan 23, 1985
A Planet for the Taking Overview / Blue Babies / High Flight
Episode: 25x13 | Airdate: Jan 30, 1985
Season 26
Susan McKellar / The Sea Otter
Episode: 26x01 | Airdate: Oct 9, 1985
Air Craft
Episode: 26x02 | Airdate: Oct 16, 1985
Muscular Fibres / Fish Locomotion
Episode: 26x03 | Airdate: Oct 23, 1985
Open Heart
Episode: 26x04 | Airdate: Oct 30, 1985
Plants and Their Preys
Episode: 26x05 | Airdate: Nov 6, 1985
Doctors of the Future / Walking / Vortices
Episode: 26x06 | Airdate: Nov 13, 1985
Predicting the Next Earthquake
Episode: 26x07 | Airdate: Nov 20, 1985
Duck in Danger
Episode: 26x08 | Airdate: Nov 27, 1985
Leper
Episode: 26x09 | Airdate: Dec 4, 1985
How Alcohol Affects the Body / Ancient Life-forms / The Physics of Archery
Episode: 26x10 | Airdate: Dec 11, 1985
Hearing Things
Episode: 26x13 | Airdate: Jan 15, 1986
The Earthquake Connection
Episode: 26x14 | Airdate: Jan 22, 1986
Islands at the Edge
Episode: 26x15 | Airdate: Jan 29, 1986
Fragile Harvest
Episode: 26x16 | Airdate: Feb 5, 1986
The Brain Puzzle
Episode: 26x17 | Airdate: Feb 19, 1986
Plankton
Episode: 26x18 | Airdate: Feb 26, 1986
The Portrait of William Bigelow
Episode: 26x19 | Airdate: Mar 2, 1986
Acid Rains
Episode: 26x20 | Airdate: Mar 12, 1986
McMaster Students
Episode: 26x21 | Airdate: Mar 23, 1986
Season 27
Cars of the Future
Episode: 27x01 | Airdate: Oct 8, 1986
Restless Sky; Rotation; Handcraft in History
Episode: 27x02 | Airdate: Oct 15, 1986
The Niagara Escarpment: A Rock Video
Episode: 27x03 | Airdate: Oct 22, 1986
The Blood of Our Children
Episode: 27x04 | Airdate: Oct 29, 1986
Herbal Plants
Episode: 27x05 | Airdate: Nov 5, 1986
Stunning Sounds
Episode: 27x06 | Airdate: Nov 12, 1986
Women of Kerala / Vortex
Episode: 27x07 | Airdate: Nov 26, 1986
Caribou Drowning in Niagara / Teflon Knee
Episode: 27x08 | Airdate: Dec 17, 1986
The Familiar Face of Love
Episode: 27x09 | Airdate: Dec 10, 1986
The Sexual Life of Plants
Episode: 27x10 | Airdate: Dec 24, 1986
Conducting
Episode: 27x11 | Airdate: Jan 7, 1987
Math
Episode: 27x12 | Airdate: Jan 14, 1987
January 21, 1987
Episode: 27x13 | Airdate: Jan 21, 1987
January 28, 1987
Episode: 27x14 | Airdate: Jan 28, 1987
The Chemistry of Fire
Episode: 27x15 | Airdate: Feb 4, 1987
Saving Children from Dehydration
Episode: 27x16 | Airdate: Feb 18, 1987
The Miracle of Life
Episode: 27x17 | Airdate: Feb 25, 1987
AIDS
Episode: 27x19 | Airdate: Mar 11, 1987
Season 28
Declining Sea Birds of the Gulf
Episode: 28x01 | Airdate: Oct 14, 1987
Radars / Dowsing for Water
Episode: 28x02 | Airdate: Oct 21, 1987
The Anatomy of Eloquence / Fossils in Shale
Episode: 28x03 | Airdate: Oct 28, 1987
LA's Toxic Waste / How Fish Swim
Episode: 28x04 | Airdate: Nov 4, 1987
The Franklin Expedition
Episode: 28x05 | Airdate: Nov 18, 1987
Nuclear Power: The Hot Debate
Episode: 28x06 | Airdate: Nov 25, 1987
A Year in the Life of the Bald Eagle / Balloons and Airships
Episode: 28x07 | Airdate: Dec 2, 1987
Serving Time / Arctic wildlife
Episode: 28x08 | Airdate: Dec 16, 1987
Spas - Magic or Medicine
Episode: 28x09 | Airdate: Dec 30, 1987
January 6, 1988
Episode: 28x10 | Airdate: Jan 6, 1988
The Children Who Learned to Listen
Episode: 28x11 | Airdate: Jan 13, 1988
The USSR - The Changing of the Guard (1)
Episode: 28x12 | Airdate: Jan 20, 1988
The USSR - The Changing of the Guard (2)
Episode: 28x13 | Airdate: Jan 27, 1988
February 2, 1988
Episode: 28x14 | Airdate: Feb 3, 1988
Death of a Star
Episode: 28x15 | Airdate: Feb 10, 1988
Next Year's Model
Episode: 28x16 | Airdate: Feb 17, 1988
Edge of Ice
Episode: 28x17 | Airdate: Mar 2, 1988
Puffins and Prey / The Stein Valley
Episode: 28x18 | Airdate: Mar 16, 1988
Season 29
The Knowing Nose
Episode: 29x01 | Airdate: Oct 5, 1988
Trouble in the Forest
Episode: 29x02 | Airdate: Oct 12, 1988
Human Evolution
Episode: 29x03 | Airdate: Oct 26, 1988
Face Value / Bird Hospital
Episode: 29x04 | Airdate: Nov 2, 1988
Piercing the Dark; Let the Wild Things Grow
Episode: 29x05 | Airdate: Nov 9, 1988
When the Rivers Run Dry
Episode: 29x07 | Airdate: Dec 14, 1988
Roger Tory Peterson: Portrait of a Bird Watcher Update
Episode: 29x08 | Airdate: Feb 22, 1989
The New Face of Leprosy
Episode: 29x09 | Airdate: May 17, 1989
Blowpipes and Bulldozers
Episode: 29x10 | Airdate: Jan 11, 1989
Back Pain / Structural Colours
Episode: 29x11 | Airdate: Jan 18, 1989
The Return of the Swift Fox / The Pains Performance
Episode: 29x12 | Airdate: Jan 25, 1989
I Never Planned on This: All of Us Age
Episode: 29x15 | Airdate: Mar 1, 1989
April 12, 1989
Episode: 29x16 | Airdate: Apr 12, 1989
The episode list was truncated because of the large number of episodes. Visit the seasons page to see individual seasons' episode guides.