“The Simpsons 138th Episode Spectacular” is the tenth episode of Season 7. The episode marks the first time Matt Groening has appeared in the show.
Troy McClure hosts this behind the scenes style show. We start with a brief history, showing some classic Tracey Ullman clips, and then Troy goes on to answer viewers’ questions about Smithers sexuality and Homer’s stupidity. We then see never-before-seen deleted scenes from various episodes up to this point, and we are shown an alternate ending to ‘Who Shot Mr Burns?’ where Smithers actually is the culprit.