FAMILY GUY: “The Big Bang Theory” Preview

FAMILY GUY: Stewie and Brian go back in time to stop Bertram (guest voice Wallace Shawn) from killing Leonardo da Vinci on the all-new "The Big Bang Theory" episode of FAMILY GUY airing Sunday, May 8 (9:00-9:30 PM) on FOX 50. FAMILY GUY ™ and © 2011 TTCFFC ALL RIGHTS RESERVED.

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By FOX50.com

Story Created: May 6, 2011 at 3:09 PM EDT

Story Updated: May 6, 2011 at 3:36 PM EDT

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Stewie and Brian go back in time to stop Bertram (guest voice Wallace Shawn) from killing Leonardo da Vinci in the all-new “The Big Bang Theory” episode of FAMILY GUY airing Sunday, May 8 (9:00-9:30 PM) on FOX 50. (FG-818) (TV-14 D, L, S, V)

Voice Cast: Seth MacFarlane as Peter Griffin, Carter Pewterschmidt, Stewie Griffin, Brian Griffin and Quagmire; Alex Borstein as Lois Griffin; Seth Green as Chris Griffin; Mila Kunis as Meg

Guest Voice Cast: Wallace Shawn as Bertram