with 15 episodes premiered on October 15, 1971

with 14 episodes premiered on September 17, 1972

with 13 episodes premiered on October 21, 1973

with 10 episodes premiered on April 25, 1976

with 10 episodes premiered on June 26, 1977

with 10 episodes premiered on July 16, 1978

with 10 episodes premiered on July 22, 1979

with 9 episodes premiered on August 31, 1980