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