creator (37 episodes, 1979-1984)
written by (14 episodes, 1979-1982)
writer (8 episodes, 1979-1980)
written by (4 episodes, 1982-1984)
writer (1 episode, 1982)
writer (1 episode, 1983)
writer (3 episodes, 1982-1983)
written by (2 episodes, 1982-1983)