Grandpa Simpson Naked, Krusty the Clown, Itchy and Scratchy, and the Happy Little Elves have all made appearances. As a side note, Mike Reiss recommended in a speech that the episode New Kids on the Blecch from Season Twelve also be pulled from reruns because of a scene involving a hijacked Navy submarine that rams into a building. The most probable assumption is 742 Evergreen Terrace, the only address currently being used. Stronger rumors have been circulating about a Simpsons movie, and therefore, a site has been developed on snpp.com archiving any and all official discussion regarding the possibility of a Simpsons movie. Lisa: "And they're not shy about expressing it." In Belgium, the commercial broadcast station VT4 airs uncut episodes of The Simpsons Sex on an irregular, but usually daily basis. But the trivia question in The 138th Episode Spectacular said that the cash register read "NRA4EVER". James L. Brooks said he got the idea for the Season One codes for The Simpsons from the fact that Homer works in sector 7G at SNPP. When Homer's Odyssey was being produced, Smithers was accidentally animated with the wrong color. Literally in about 15 minutes, in James L. Brooks' office. In addition, for a comprehensive list of all the celebrity guest stars, please refer to Simpsons Porn Guest Stars. Maggie Groening has written a series of children's books featuring Maggie Simpson, and for the illustration, she enlisted her older brother's help.