Sezon 12
Bölümler
1 Puddles and Pools 5 Ara 1972 2 Spots 12 Ara 1972 3 Animals 19 Ara 1972 4 Lines 2 Oca 1973 5 Doors 9 Oca 1973 6 Wheels 16 Oca 1973 7 Bricks 23 Oca 1973 8 Balance 30 Oca 1973 9 Metal 6 Şub 1973 10 Weather 13 Şub 1973 11 Nets 20 Şub 1973 12 Clocks 27 Şub 1973 13 Pipes 6 Mar 1973 14 Uniforms 13 Mar 1973 15 Numbers 20 Mar 1973 16 Water 27 Mar 1973