production staff (13 episodes, 2002-2011)
researcher (1 episode, 1972)
researcher (1 episode, 2007)
production assistant (1 episode, 2010)
researcher (1 episode, 2013)
production coordinator (1 episode, 2013)
assistant content producer (1 episode, 2013)
consultant (1 episode, 2014)
production assistant (1 episode, 2021)