In this recap, Jim Parsons traces his lineage back to the Age of Enlightenment and discovers that his six-time great-grandfather shared circles with some of the time’s greatest thinkers. | For more, visit http://www.tlc.com/tv-shows/who-do-you-think-you-are/ Subscribe to TLC! | http://www.youtube.com/subscription_center?add_user=tlc source