executive producer / executive producer / producer (56 episodes, 1973-1979)
executive producer / producer (63 episodes, 1973-1976)
associate producer / producer (43 episodes, 1973-1975)
producer (43 episodes, 1975-1977)
co-producer / producer / associate producer (30 episodes, 1976-1979)
associate producer (22 episodes, 1975-1976)
producer (21 episodes, 1975-1976)
associate producer (14 episodes, 1974-1975)
producer (8 episodes, 1977-1979)
associate producer (4 episodes, 1977-1978)
associate producer (4 episodes, 1978-1979)