with 24 episodes premiered on September 17, 1972

with 24 episodes premiered on September 15, 1973

with 24 episodes premiered on September 10, 1974

with 24 episodes premiered on September 12, 1975

with 24 episodes premiered on September 21, 1976

with 24 episodes premiered on September 20, 1977

with 25 episodes premiered on September 18, 1978

with 25 episodes premiered on September 17, 1979

with 20 episodes premiered on November 17, 1980

with 21 episodes premiered on October 26, 1981

with 16 episodes premiered on October 25, 1982