By Breaking Celebrity News Staff

Family Guy creator Seth MacFarlane tells Piers Morgan Wednesday that TV personality Jon Stewart placed "an angry call" to him over a joke on his animated show, that knocked Stewart for working through the 2008 writer's strike, and Breaking Celebrity News has the video clip.

"It is incumbent upon people in a certain position to stand up for the people who haven't made it yet," MacFarlane, who was admittedly "measured" with his words, explained as his rationale behind the dig at Stewart.