Acting

—

(1 episode) as Dr. Lance Pickering

2017

(10 episodes) as Albert Einstein

2016

(1 episode) as Self

2013

(10 episodes) as Himself - Narrator

2010

(16 episodes) as Narrator (voice)

2007

(1 episode) as Himself

2005

(1 episode)

2004

(1 episode) as Self - Guest

2003

(1 episode)

2002

(1 episode) as Geoff

2001

(1 episode) as Self - Guest

1997

(2 episodes) as Self

1996

(13 episodes) as Bill Wyatt

1953

(4 episodes) as Self