THE SIMPSONS. Principal Skinner shows up at the comic book convention in a last, desperate attempt to fight Comic Book Guy for Ednaâs heart on THE SIMPSONS episode ãMy Big Fat Geek Weddingä Sunday, April 4 (8:00-8:30 PM ET/PT) on FOX. (Pictured: Matt Groening as himself.) THE SIMPSONS ™ and © 2004 TCFFC ALL RIGHTS RESERVED. ™©2004FOX BROADCASTING CO. CR:FOX

THE SIMPSONS: Art imitates life as THE SIMPSONS creator Matt Groening makes his first guest voice appearance, happily signing autographs for fans at a Springfield sci-fi convention in THE SIMPSONS episode "My Big Fat Geek Wedding" airing Sunday, April 18 (8:00-8:30 PM ET/PT) on FOX.

THE SIMPSONS: Art imitates life as THE SIMPSONS creator Matt Groening makes his first guest voice appearance, happily signing autographs for fans at a Springfield sci-fi convention in THE SIMPSONS episode "My Big Fat Geek Wedding" airing Sunday, April 18 (8:00-8:30 PM ET/PT) on FOX.