The Big Bang Theory
Stewie and Brian go back in time to stop Bertram from killing Leonardo da Vinci in order to erase Stewie from the universe.

Cast
Seth MacFarlanePeter Griffin / Brian Griffin / Stewie Griffin / Glenn Quagmire (voice)
Alex BorsteinLois Griffin / Tricia Takanawa / Loretta Brown / Barbara Pewterschmidt (voice)
Mila KunisMeg Griffin (voice)
Seth GreenChris Griffin (voice)
Patrick WarburtonJoe Swanson (voice)
Arif ZahirCleveland Brown (voice)Family Guy on tvt

