Acting

2006

(1 episode) as Christopher Guest

1999		The Early Show (1 episode) as Nigel Tufnel
1999		Where Are They Now? (1 episode) as Self
1999		SpongeBob SquarePants (1 episode) as Stanley S. Squarepants (voice)
1999		Dilbert (1 episode) as The Dupey (voice)

1997

(1 episode) as Self

1996

(1 episode)

1993

(1 episode) as Umlatt (voice)

1989

(1 episode) as Nigel Tufnel (voice)

1982

(2 episodes) as H.J. Cummings

1979		Blind Ambition (4 episodes) as Jeb Stuart Magruder
1979		CBS News Sunday Morning (1 episode) as Self

1977

(1 episode) as Gordon Hamilton

1976

(1 episode)

1975		Saturday Night Live (17 episodes) as Self - Various Characters
1975		Saturday Night Live with Howard Cosell (4 episodes)

1971

(1 episode) as Jim

Writing

1991

(2 episodes) … Writer

1975

(4 episodes) … Writer

Creator

2013

… Creator

Directing

1985

(1 episode) … Director