creator (1,420 episodes, 1980-2003)
written by (38 episodes, 1980-1982)
created by (4 episodes, 1980-1984)
writer (1 episode, 1980)
written by (108 episodes, 1980-1991)
story editor (38 episodes, 1983-1987)
written by (108 episodes, 1980-1992)
storyliner (101 episodes, 1996-1997)
written by (79 episodes, 1983-1993)
written by (60 episodes, 1982-1993)
writer (3 episodes, 1980-1981)
directed by (1 episode, 1983)
written by (39 episodes, 1980-1995)
written by (28 episodes, 1984-1987)
written by (27 episodes, 1984-1990)
(25 episodes, 1999-2003)
written by (21 episodes, 1988-1995)
written by (17 episodes, 1980-1981)
written by (11 episodes, 1989-1990)
written by (10 episodes, 1986-1990)
written by (6 episodes, 1990-1991)
written by (6 episodes, 1993-1995)
story editor (4 episodes, 1999)
written by (3 episodes, 1980)
written by (3 episodes, 1987)
written by (3 episodes, 1990)
written by (3 episodes, 1992)
written by (3 episodes, 1993)
written by (1 episode, 1980)
written by (2 episodes, 1980)
written by (2 episodes, 1981)
written by (2 episodes, 1982)
written by (2 episodes, 1986)
written by (2 episodes, 1993)
written by (1 episode, 1993)
(1 episode, 1998)
written by (1 episode, 2003)