Season 1
50 episodes · 1972
Season 2
55 episodes · 1973
Roy Skelton joins the cast as the voice of Zippy and George.
Season 3
34 episodes · 1974
The first Season with the Best known presenter of the show Geoffrey Hayes, and the more familiar characterisation of Bungle.
Season 4
67 episodes · 1974
A new group of singers, husband and wife team Rod and Jane join the cast along with Matthew Corbett.
Season 5
78 episodes · 1975
Season 6
50 episodes · 1976
Season 7
61 episodes · 1977
Roger Walker replaces Matthew Corbett who leaves the show to continue presenting 'The Sooty Show' for his father.
Season 8
80 episodes · 1978
Season 9
69 episodes · 1979
Season 10
73 episodes · 1980
Freddy Marks replaces Roger Walker, creating the best remembered line up of the "Rainbow" Singers 'Rod, Jane and Freddy'.
Season 11
24 episodes · 1981
Season 12
36 episodes · 1982
Season 13
30 episodes · 1983
Season 14
22 episodes · 1983
Season 15
29 episodes · 1984
Season 16
44 episodes · 1984
Season 17
49 episodes · 1985
Season 18
54 episodes · 1986
Season 19
16 episodes · 1987
Season 20
51 episodes · 1988
Season 21
24 episodes · 1989
Season 22
24 episodes · 1990
Season 23
24 episodes · 1991