"Emission Impossible" is the 11th episode of the third season of Family Guy, that first aired November 8, 2001. The episode was originally scheduled to air on September 19, but was postponed due to the September 11 attacks, which made "A Fish out of Water" air instead.The episode was written by Dave Collard and Ken Goin, directed by Peter Shin. Majel Barrett guest-starred as the voice of Stewie's microbionautical ship, and Wallace Shawn as Bertram, one of Stewie's potential brothers.