What yaer did MacFarlane come up with the idea for " Family Guy " ?
He appeared in a cameo in " Spies Reminiscent of Us " , in which he dealt with the indignity of having his new house wrecked in the same fashion as his old one in Quahog , as well as appearing in the season 8 episode " The Splendid Source " , where he joins the gang on a road trip to find the source of a dirty joke Chris Griffin told at school .