created by (168 episodes, 1969-1976)
story (1 episode, 1969)
writer (12 episodes, 1969-1976)
teleplay (1 episode, 1973)
writer (6 episodes, 1973-1976)
teleplay (5 episodes, 1974-1975)
written by (2 episodes, 1975)
writer (9 episodes, 1969-1974)
(11 episodes, 1969-1974)
teleplay (1 episode, 1972)
writer (8 episodes, 1973-1976)
written by (1 episode, 1973)
writer (6 episodes, 1969-1972)
written by (1 episode, 1971)
(6 episodes, 1969-1972)
teleplay (3 episodes, 1969-1970)
story (1 episode, 1970)
writer (3 episodes, 1969-1971)
teleplay (2 episodes, 1970-1971)
(6 episodes, 1969-1971)
story (1 episode, 1971)
writer (3 episodes, 1971-1973)
teleplay by (1 episode, 1971)
teleplay (1 episode, 1970)
written by (4 episodes, 1970-1974)
(5 episodes, 1970-1974)
writer (4 episodes, 1969-1976)
(4 episodes, 1969-1973)
writer (2 episodes, 1969-1973)
writer (2 episodes, 1970-1974)
writer (4 episodes, 1974-1976)
teleplay (2 episodes, 1974-1975)
writer (2 episodes, 1974)
writer (2 episodes, 1971)
(3 episodes, 1969-1971)
story (2 episodes, 1970)
story by (1 episode, 1971)
writer (2 episodes, 1971-1973)
writer (3 episodes, 1972-1973)
writer (2 episodes, 1973-1974)
written by (1 episode, 1974)
writer (2 episodes, 1969-1975)
teleplay (1 episode, 1969)
writer (1 episode, 1970)
writer (2 episodes, 1969-1970)
writer (2 episodes, 1970)
(2 episodes, 1971-1972)
writer (1 episode, 1972)
(2 episodes, 1973-1974)
writer (2 episodes, 1974-1975)
story (2 episodes, 1976)
writer (1 episode, 1969)
written by (1 episode, 1970)
(1 episode, 1970)
(1 episode, 1971)
writer (1 episode, 1971)
story (1 episode, 1972)
story (1 episode, 1973)
story (1 episode, 1974)
teleplay (1 episode, 1974)
writer (1 episode, 1974)
written by (1 episode, 1975)
story (1 episode, 1975)
teleplay (1 episode, 1975)
(1 episode, 1975)
writer (1 episode, 1976)
writer (unknown episodes)