E1 - Coils and Springs

Aired: January 01, 1974

E2 - Opposites

Aired: January 08, 1974

E3 - Signs and Signals

Aired: January 15, 1974

E4 - Ghosties and Ghoulies

Aired: January 22, 1974

E5 - Triangles

Aired: January 29, 1974

E6 - Waves

Aired: February 05, 1974

E7 - Food

Aired: February 12, 1974

E8 - Windows

Aired: February 19, 1974

E9 - Drips and Drops

Aired: February 26, 1974

E10 - Humps and Lumps

Aired: March 05, 1974

E11 - Air

Aired: March 12, 1974

E12 - Growing

Aired: March 19, 1974

E13 - Bags

Aired: March 26, 1974

E14 - Spikes

Aired: April 02, 1974

E15 - Episode 15

Aired: April 09, 1974

E16 - Circles

Aired: April 16, 1974

E17 - Reflections

Aired: December 31, 1974

E18 - Episode 18

Aired: January 14, 1975

E19 - Episode 19

Aired: January 21, 1975

E20 - Episode 20

Aired: January 28, 1975

E21 - Building

Aired: February 04, 1975

E22 - Episode 22

Aired: February 11, 1975

E23 - Space

Aired: February 18, 1975

E24 - Games

Aired: February 25, 1975

E25 - Episode 25

Aired: March 04, 1975

E26 - Episode 26

Aired: March 11, 1975

E27 - Episode 27

Aired: March 18, 1975

E28 - Dark and Light

Aired: March 25, 1975

E29 - Litter

Aired: April 01, 1975

E30 - Zigzags

Aired: April 08, 1975

E31 - Episode 31

Aired: April 15, 1975

E32 - Wood

Aired: April 22, 1975