Seasons
Season 1
2 episodes
1974
Season 2
13 episodes
1975
Season 3
18 episodes
1976
Season 4
17 episodes
1977
Season 5
37 episodes
1978
Season 6
31 episodes
1979
Season 7
47 episodes
1980
Season 8
44 episodes
1981
Season 9
35 episodes
1982
Season 10
46 episodes
1983
Season 11
34 episodes
1984
Season 12
36 episodes
1985
Season 13
5 episodes
1986