with 10 episodes premiered on February 13, 1971

with 13 episodes premiered on January 15, 1972

with 13 episodes premiered on January 6, 1973

with 13 episodes premiered on January 5, 1974

with 11 episodes premiered on February 1, 1975

with 13 episodes premiered on January 3, 1976

with 13 episodes premiered on January 8, 1977

with 10 episodes premiered on January 23, 1978

with 11 episodes premiered on January 22, 1979

with 11 episodes premiered on January 21, 1980

with 8 episodes premiered on February 16, 1981

with 7 episodes premiered on January 4, 1982