第 15 季 共 22 集
播出时间：2003年11月3日
第 1 集 Treehouse of Horror XIV
播出时间：2003年11月3日
"Reaper Madness" - Death becomes Homer and our hero must learn to reap what he sows (and pull a fast one on the almighty). "Frinkenstein" - Soon to be Nobel-prize winning Professor Frink reanimates his father for some gruesome body parts-swapping. "Stop the World, I Want to Goof Off" - A parody of Clockstoppers, starring Bart and Milhouse.
第 2 集 My Mother the Carjacker
播出时间：2003年11月10日
Homer's mother returns, and after being cleared of all charges, is re-imprisoned on a technicality.
第 3 集 The President Wore Pearls
播出时间：2003年11月17日
In this loose parody of the musical/movie Evita, Lisa is elected Student Body president, but is unaware that the school staff is using her for their own devices and as a scapegoat if something goes wrong.
第 4 集 The Regina Monologues
播出时间：2003年11月24日
After making over $3000 from his own museum featuring a $1000 bill, Bart takes the family to London (on the suggestion of Grampa), where Homer is arrested for treason after crashing into the Queen.
第 5 集 The Fat and the Furriest
播出时间：2003年12月1日
Homer is humiliated when he appears on the news running from a bear that nearly attacks him at the city dump. After Grampa scolds him, he swears to fight the bear himself.
第 6 集 Today I Am a Clown
播出时间：2003年12月8日
Krusty discovers that he never had a bar mitzvah as a child. He quits his show to have it as an adult, with the help of his father, Rabbi Krustofski. Meanwhile, Homer hosts a late-night talk show a la "Politically Incorrect with Bill Maher" as a replacement for Krusty's show.
第 7 集 'Tis the Fifteenth Season
播出时间：2003年12月15日
Homer realizes how selfish he is after he spends all the family's Christmas money on a present for himself. He becomes the nicest guy in town, making Ned Flanders jealous.
第 8 集 Marge vs. Singles, Seniors, Childless Couples and Teens, and Gays
播出时间：2004年1月5日
When a group of singles, seniors, childless couples, teens and gays band together to protest having to accommodate families (including paying property taxes used to teach children they do not have) after a riot at a children's concert, Marge takes up the cause for the families, with some help from Bart and Lisa.
第 9 集 I, (Annoyed Grunt)-Bot
播出时间：2004年1月12日
Homer builds a battle robot to win Bart's respect, and places it in a tournament against other robots. What Bart does not know, though, is that the robot is actually Homer in costume. Meanwhile, Snowball II dies and Lisa tries to find a replacement cat.
第 10 集 Diatribe of a Mad Housewife
播出时间：2004年1月26日
Marge writes a romance novel with characters based on Homer and Ned Flanders that becomes a hit. Meanwhile, Homer gets fired from the power plant again and becomes an ambulance driver.
第 11 集 Margical History Tour
播出时间：2004年2月9日
When the local library proves to be useless for the kids' class project, Marge tells Milhouse, Bart, and Lisa three Simpsons-style historical accounts: Henry VIII's (Homer's) attempts at siring a son, Lewis and Clark (Lenny and Carl) exploring the USA's wilderness with Sacagawea (Lisa), and Salieri (Lisa again) out to ruin piano-playing virtuoso Mozart (Bart).
第 12 集 Milhouse Doesn't Live Here Anymore
播出时间：2004年2月16日
Bart finds a friend in his own sister Lisa after Milhouse moves away to Capitol City to live with his divorced mom. Meanwhile Homer goes into panhandling to buy anniversary gifts for Marge. Later on Milhouse returns and Bart goes back being friends with him.
第 13 集 Smart and Smarter
播出时间：2004年2月23日
When Maggie does better than Lisa on an IQ test, Lisa becomes upset over no longer being the smart one and tries to lead Maggie astray.
第 14 集 The Ziff Who Came to Dinner
播出时间：2004年3月15日
The Simpsons go on a late-night attic search after Bart and Lisa (who are freaked out over a horror movie Homer let them watch) begin hearing voices -- and find Marge's ex-prom date Artie Ziff, who's on the run for cheating the shareholders of his company.
第 15 集 Co-Dependent's Day
播出时间：2004年3月22日
Homer and Marge's bond becomes stronger when they both get drunk on wine, but soon the bond unravels when Homer blames Marge for crashing the car and Marge gets sent to rehab. Meanwhile, Bart and Lisa complain to Randall Curtis (a George Lucas-esque science fiction movie director) about his latest film.
第 16 集 The Wandering Juvie
播出时间：2004年3月29日
Bart gets sent to juvenile hall after fooling everyone that there was a marriage concerning him. He encounters a dangerous girl there... He flees with Gina, but then the two are caught by Wiggum.
第 17 集 My Big Fat Geek Wedding
播出时间：2004年4月19日
After hearing that Skinner is getting cold feet about their wedding, Edna leaves Skinner at the altar and, after sending back one marriage gift, hooks up with Comic Book Guy. Meanwhile, Homer and Marge have an argument about if their marriage is still solid or not.
第 18 集 Catch 'Em If You Can
播出时间：2004年4月26日
After a ruined movie night, thanks to Bart and Lisa, Homer and Marge take a vacation away from them, but decide to go to Miami instead of going to see an uncle. When Bart and Lisa catch wind of their parents' secret plan, Bart steals Rod's credit card (just like Homer stole Ned's) and go after them.
第 19 集 Simple Simpson
播出时间：2004年5月3日
Homer becomes "Pie Man", a masked vigilante who delivers a pie in the face of justice to evildoers. However, after attacking Mr. Burns, Burns hires him as a personal hitman, until Homer is ordered to attack the Dalai Lama.
第 20 集 The Way We Weren't
播出时间：2004年5月10日
Homer and Marge recall the story of their first kiss at a summer camp when they were children—an event which was not all happy, as Homer (unwillingly) betrayed Marge by standing her up on their second date.
第 21 集 Bart-Mangled Banner
播出时间：2004年5月17日
After receiving an injection from Dr. Hibbert, Bart becomes temporarily deaf, which makes him impervious to being bullied, until he accidentally moons the American flag during a donkey basketball game, prompting everyone in town to accuse the Simpsons of being unpatriotic under the new "Government Knows Best" Act.
第 22 集 Fraudcast News
播出时间：2004年5月24日
Mr. Burns buys out Springfield's media outlets after a newspaper mistakenly reports his death, and Lisa's homemade newspaper is next on his list.
