Via Twitter, Oakley revealed that he searched his old files for lost Simpsons plots that were "pitched, discussed, written" by the show's then-staff but ultimately tossed.
So here they are:
10. "Homer's Sexual Fantasy" by Dan Greaney
9. "Homer Privately Tells Bart He Loves Him Best" by Ken Keeler
8. Bart Gets 144 Jeeps by Bill Oakley & Josh Weinstein. According to Simpsons fansite Rubbercat (that link is a must-read for you Simpsons obsessives, by the way), this was based on a post-WWII urban legend claiming there were crateloads of surplus Army Jeeps on sale for cheap.
7. "Homer the Narcoleptic" by David X. Cohen. Cohen — who went on to become one of Futurama's executive producers — apparently pitched this idea "many, many times".
6. "thirtysimpsons" by David M. Stern. In which Homer would have made friends with a bunch of yuppies. The title refers to the late-'80s drama thirtysomething.
5. "Amusement Park" by Matt Groening
4. "Homer vs. Dr. Hibbert on the Issue of Race" by Greg Daniels. Possibly nixed because the writers decided The Simpsons is not the appropriate forum to address such as controversial topic.
3. "Homer's $1000 Suit" — index card left on bulletin board by Sam Simon
2. Lisa the Scientopteran by George Meyer. Rubbercat theorises that this episode would have spoofed Scientology — Bart's voice actress Nancy Cartwright is a Scientologist, by the way — but was canned due to legal ramifications.
1. "Prince Comes to Springfield" by Conan O'Brien. This is fascinating: this episode would've been a sequel to 'Stark Raving Dad', which featured a mental patient called Leon Kompowsky who thinks he's Michael Jackson. (Jackson really did voice the character.) In the mooted follow-up, he would've returned to Springfield, but now he thinks he's Prince — and Prince would have done the voice. O'Brien apparently wrote a script that Prince hated, so it was ditched.
Discover more stars who turned down The Simpsons in TVFIX's slideshow: