Writing

2011

1 episode … Writer

1991

1 episode … Writer

1990

4 episodes … Writer

1984

3 episodes … Writer

1977

14 episodes … Writer

1975

4 episodes … Writer

1974

1 episode … Writer

1971

29 episodes … Writer

Production

1984

22 episodes … Producer

1978

23 episodes … Executive Producer

1977

148 episodes … Producer

1975

248 episodes … Producer

1971

210 episodes … Producer

Creator

1976

… Creator

1975

… Creator