Episode 1
El Arte
May 20, 1976
Episode 2
Poles North and South
May 23, 1976
Episode 3
Mascaras
May 24, 1976
Episode 4
Vamos a Bailar
May 25, 1976
Episode 5
Solar Energy
May 26, 1976
Episode 6
Numeros
May 27, 1976
Episode 7
Las Islas
May 30, 1976
Episode 8
Los Caminos
May 31, 1976
Episode 9
Fiestas
Jun 1, 1976
Episode 10
Sound and Waves
Jun 2, 1976
Episode 11
Zero and More
Jun 3, 1976
Episode 12
What's Inside the Earth?
Jun 6, 1976
Episode 13
The Shape of Things
Jun 7, 1976
Episode 14
Ships and Ports of Call
Jun 8, 1976
Episode 15
What's a Language?
Jun 9, 1976
Episode 16
Equal and Unequal
Jun 10, 1976
Episode 17
The Shape of Things #2
Jun 13, 1976
Episode 18
Stored Energy
Jun 14, 1976
Episode 19
Wings & Flying Things
Jun 15, 1976
Episode 20
Plebiscite for All
Jun 16, 1976
Episode 21
Los muebles
Jun 17, 1976
Episode 22
Bio-Degradable
Jun 20, 1976
Episode 23
Where Do Animals Go?
Jun 21, 1976
Episode 24
Las corrientes
Jun 22, 1976
Episode 25
Lens, Shutters & Silver Salts
Jun 23, 1976
Episode 26
Learning How
Jun 24, 1976
Episode 27
What's Tropical?
Jun 27, 1976
Episode 28
Automatico
Jun 28, 1976
Episode 29
Horsemen of America
Jun 29, 1976
Episode 30
Engine
Jun 30, 1976
Episode 31
Energy Foods
Jul 1, 1976
Episode 32
Changes That Don't Change
Jul 4, 1976
Episode 33
Not Like Crayons
Jul 5, 1976
Episode 34
Intercambio
Jul 6, 1976
Episode 35
El Vuelo
Jul 7, 1976
Episode 36
Measuring Up
Jul 8, 1976
Episode 37
Maps, Charts, & Models
Jul 11, 1976
Episode 38
Made from Metal
Jul 12, 1976
Episode 39
What's Extinct?
Jul 13, 1976
Episode 40
Social Responsibilities
Jul 14, 1976
Episode 41
Eyes and Seeing Things
Jul 15, 1976
Episode 42
Where Are You From?
Jul 18, 1976
Episode 43
Sources of Food & Nutrients
Jul 19, 1976
Episode 44
Picture Words
Jul 20, 1976
Episode 45
Play Things
Jul 21, 1976
Episode 46
From Scribblings to Caligraphy
Jul 22, 1976
Episode 47
Angry Nature
Jul 25, 1976
Episode 48
La musica
Jul 26, 1976
Episode 49
Rules
Jul 27, 1976
Episode 50
Invisible Workers
Jul 28, 1976
Episode 51
Working with People
Jul 29, 1976
Episode 52
Episode 52
Aug 1, 1976
Episode 53
Episode 53
Aug 2, 1976
Episode 54
Episode 54
Aug 3, 1976
Episode 55
Energy Scales
Aug 4, 1976
Episode 56
Episode 56
Aug 5, 1976
Episode 57
Water Comes and Goes
Aug 8, 1976
Episode 58
Pressing Prints
Aug 9, 1976
Episode 59
Episode 59
Aug 10, 1976
Episode 60
Gravity
Aug 11, 1976
Episode 61
El Amor
Aug 12, 1976
Episode 62
Episode 62
Aug 15, 1976
Episode 63
Episode 63
Aug 16, 1976
Episode 64
Episode 64
Aug 17, 1976
Episode 65
Episode 65
Aug 18, 1976