Season 1
42 episodes
November 23, 1963 - September 12, 1964
Season 2
39 episodes
October 31, 1964 - July 24, 1965
Season 3
45 episodes
September 11, 1965 - July 16, 1966
Season 4
43 episodes
September 10, 1966 - July 1, 1967
Season 5
40 episodes
September 2, 1967 - June 1, 1968
Season 6
44 episodes
August 10, 1968 - June 21, 1969
Season 7
25 episodes
January 3, 1970 - June 20, 1970
Season 8
25 episodes
January 2, 1971 - June 19, 1971
Season 9
26 episodes
January 1, 1972 - June 24, 1972
Season 10
26 episodes
December 30, 1972 - June 23, 1973
Season 11
26 episodes
December 15, 1973 - June 8, 1974
Season 12
20 episodes
December 28, 1974 - May 10, 1975
Season 13
26 episodes
August 30, 1975 - March 6, 1976
Season 14
26 episodes
September 4, 1976 - April 2, 1977
Season 15
26 episodes
September 3, 1977 - March 11, 1978
Season 16
26 episodes
September 2, 1978 - February 24, 1979
Season 17
20 episodes
September 1, 1979 - January 12, 1980
Season 18
28 episodes
August 30, 1980 - March 21, 1981
Season 19
26 episodes
January 4, 1982 - March 30, 1982
Season 20
22 episodes
January 4, 1983 - March 16, 1983
Season 21
26 episodes
January 5, 1984 - March 30, 1984
Season 22
13 episodes
January 5, 1985 - March 30, 1985
Season 23
14 episodes
September 6, 1986 - December 6, 1986
Season 24
14 episodes
September 7, 1987 - December 7, 1987
Season 25
14 episodes
October 5, 1988 - January 4, 1989
Season 26
14 episodes
September 6, 1989 - December 6, 1989
