with 29 episodes premiered on June 15, 1969

with 22 episodes premiered on September 15, 1970

with 26 episodes premiered on September 18, 1971

with 26 episodes premiered on September 16, 1972

with 26 episodes premiered on September 15, 1973

with 26 episodes premiered on September 14, 1974

with 26 episodes premiered on September 13, 1975

with 26 episodes premiered on September 18, 1976

with 26 episodes premiered on September 17, 1977

with 26 episodes premiered on September 16, 1978

with 26 episodes premiered on September 15, 1979

with 26 episodes premiered on September 13, 1980

with 26 episodes premiered on September 12, 1981

with 26 episodes premiered on September 11, 1982

with 26 episodes premiered on September 17, 1983

with 26 episodes premiered on September 22, 1984

with 26 episodes premiered on September 21, 1985

with 26 episodes premiered on September 20, 1986

with 26 episodes premiered on September 19, 1987

with 24 episodes premiered on October 1, 1988

with 24 episodes premiered on September 16, 1989

with 23 episodes premiered on September 15, 1990

with 22 episodes premiered on January 4, 1992