Fair rating?Family Guy· Season 9 · Episode 16
The Big Bang Theory
Stewie and Brian go back in time to stop Bertram from killing Leonardo da Vinci.
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#10In Season 9of 18 rated episodes
#271All-timeof 457 rated episodes
−0.1vs season avgSeason 9 averages 7.0
2011First airedMay 8, 2011
Guest stars
Crew
Dominic PolcinoDirector
David A. GoodmanWriter