Season 18

Season Information
Original Run	September 10, 2006 - May 20, 2007
Number of Episodes	22
DVD boxset	The Complete Eighteenth Season
Season Chronology
Previous season	17
Next season	19

Season 18 aired from September 10, 2006 with "The Mook, the Chef, the Wife and Her Homer" to May 20, 2007 with the 400th episode "You Kent Always Say What You Want." A DVD version was released ten years after the season finale on December 5, 2017.

List of episodes

Screenshot	Total Episode #	Season Episode #	Title	Production Code	Original Airdate	Viewers in Millions
	379	1	"The Mook, the Chef, the Wife and Her Homer"	HABF15	Sunday, September 10, 2006	11.63
After Lisa befriends Fat Tony's son Michael, Fat Tony invites the Simpsons over for dinner as a sign of gratitude. Shockingly, Fat Tony is shot by a rival family moments after Michael admits he would rather be a chef than take over the family business. Fat Tony's main thugs, Dante and Dante Jr., want Michael to be the new kingpin, but when he declines, Homer steps up and leads the family on a major mob spree.
	380	2	"Jazzy and the Pussycats"	HABF18	Sunday, September 17, 2006	9.01
Bart plays the drums following a counselor's suggestion. He is very good at it, and is asked by a rock group to become a member of their band, something that has been Lisa's dream for a long time.
	381	3	"Please Homer, Don't Hammer 'Em"	HABF20	Sunday, September 24, 2006	9.72
When Marge gets a job as a carpenter, every man in Springfield fears she will ruin everything she fixes because of her being a woman. Homer pretends to be the carpenter while Marge does all the work, until he starts getting too much credit for doing nothing.
	382	4	"Treehouse of Horror XVII"	HABF17	Sunday, November 5, 2006	10.46
In "Married to the Blob," Homer eats green extraterrestrial goo and morphs into a rampaging blob with an insatiable appetite; in "You Gotta Know When to Golem," Bart uses a golem; and in "The Day the Earth Looked Stupid," the residents of early-1930s Springfield refuse to believe news of an actual alien invasion after being duped by Orson Welles's "War of the Worlds" broadcast.
	383	5	"G.I. D'oh"	HABF21	Sunday, November 12, 2006	11.43
Bart joins the army after recruiters visit the school, so Homer takes his place. After he escapes with all the other soldiers, the colonel invades Springfield in a hunt to locate him.
	384	6	"Moe'N'a Lisa"	HABF19	Sunday, November 19, 2006	9.27
Lisa turns Moe's notes of an obscure world into a poem, so he is invited to a writer's convention by Tom Wolfe, but he says that it is his own work, which breaks Lisa's heart.
	385	7	"Ice Cream of Margie (with the Light Blue Hair)"	HABF22	Sunday, November 26, 2006	10.93
Homer works as an ice cream vendor while Marge uses popsicle sticks to make sculptures of people in Springfield and becomes famous.
	386	8	"The Haw-Hawed Couple"	JABF02	Sunday, December 10, 2006	8.31
After Bart convinces all his friends not to go to Nelson's birthday party, Marge forces him to attend. After the party, Bart becomes Nelson's new best friend, and under Nelson's protection, no one dares to mess with Bart. There's only drawback to his newfound friend/bodyguard, he can no longer pal around with Milhouse.
	387	9	"Kill Gil, Volumes I & II"	JABF01	Sunday, December 17, 2006	8.88
During a holiday ice skating show starring guest voice Elvis Stojko, Homer jumps into a chaotic brawl involving the other ice skaters. In order to escape the chaos, Marge decides to take the family holiday shopping. Gil, dressed as Santa Claus, unknowingly gives Lisa a sold-out Malibu Stacy doll that belongs to his boss' daughter. When Gil loses his job, the Simpsons invite him over for Christmas dinner, which becomes a huge mistake as Gil moves in uninvited and mooches off the Simpsons. Out of guilt, Marge continually allows Gil to prolong his stay, but when her patience wears thin, she's forced to overcome her fear and finally say "no."
	388	10	"The Wife Aquatic"	JABF03	Sunday, January 7, 2007	11.62
During an outdoor movie event, Marge remembers of going to Barnacle Bay, an island she visited in childhood. Homer takes her there, but when the family arrives they discover it has become positively poor.
	389	11	"Revenge is a Dish Best Served Three Times"	JABF05	Sunday, January 28, 2007	8.04
After the Simpsons' car breaks down, the family tells each other tales of revenge gone wrong. Marge offers a cautionary tale of revenge from 19th-century France, where Homer is charged with treason; Lisa tells of a nerd revenge at Springfield Elementary involving Milhouse leading the nerds to overthrow the bullies; and Bart's story follows the great crime-fighter Red Revenge.
	390	12	"Little Big Girl"	JABF04	Sunday, February 11, 2007	8.18
After unwittingly saving Springfield from an out-of-control fire, Bart is rewarded with a driving license. However, he gets bushed of driving Homer everywhere, so he goes on the run and has a relationship with an older girl named Darcy. Meanwhile, Lisa invents a pretend Native American tribe for her school report and claims to be a descendant of it. The statement snowballs to a dramatic conclusion.
	391	13	"Springfield Up"	JABF07	Sunday, February 18, 2007	8.74
Declan Desmond films a documentary about the lives of people of Springfield and how they changed over the years. Homer makes him believe he is rich, but he actually took Burns Manor while Mr. Burns was out.
	392	14	"Yokel Chords"	JABF09	Sunday, March 4, 2007	9.04
When the ever-righteous Lisa protests denying education to Cletus' 'hillbilly' kids, Principal Skinner offers her a chance to tutor the kids herself. However, Lisa's plans to help are diverted when Krusty spots the kids during their field trip and decides to use them as a musical act for his show. Meanwhile, in a scheme to steal his lunch for the day, Bart tries to scare his peers out of the cafeteria by claiming it's haunted by the ghost of an old school chef who uses students as ingredients in his recipes. When the school erupts with fear and chaos, Bart is punished and sent to receive psychiatric treatment, and he develops a unique relationship with his therapist.
	393	15	"Rome-Old and Julie-Eh"	JABF08	Sunday, March 11, 2007	8.79
The court appoints an accountant for Homer when he incorrectly files for bankruptcy, which results in his cutting back on all of his expenses, including Grampa's nursing home. In an unexpected turn of events, Grampa and Selma fall in love and move in together, and Homer and Patty plot to break up their love connection. Meanwhile, Bart and Lisa con a delivery man into giving them the most sought-after commodity in the neighborhood cardboard boxes. Their alliance is put to the test when the delivery man realizes he was duped.
	394	16	"Homerazzi"	JABF06	Sunday, March 25, 2007	6.97
Homer becomes a tabloid photographer and takes photos of famous people, but they start to get irritated so they send a photographer who will take pictures of Homer's most humiliating moments.
	395	17	"Marge Gamer"	JABF10	Sunday, April 22, 2007	6.46
Marge discovers the Internet and gets hooked on an online fantasy role-playing game called Earthland Realms, where she interacts with practically everyone in Springfield, including Bart, whose online persona is the local tough guy, the Shadow Knight. Meanwhile, Homer becomes a soccer referee, which strains his and Lisa's relationship when he has to call penalties on her.
	396	18	"The Boys of Bummer"	JABF11	Sunday, April 29, 2007	7.57
The Springfield Isotots win a Little League championship game, but when Bart makes an error that costs the team the championship, the townspeople refuse to let him forget it. Meanwhile, Homer's attempts to talk his way out of being caught sleeping in a department store bed end up selling the mattress, so he ends up as a mattress salesman, but he has second thoughts when Reverend Lovejoy trades Homer's mattress for the one he just bought.
	397	19	"Crook and Ladder"	JABF13	Sunday, May 6, 2007	7.77
Homer, Moe, Apu, and Principal Skinner become volunteer firefighters. But just because the boys are not getting their salary doesn't mean that they can't find a way to receive compensation.
	398	20	"Stop, or My Dog Will Shoot!"	JABF12	Sunday, May 13, 2007	6.54
When Homer gets lost in a cornfield maze, Santa's Little Helper comes to the rescue, sending the hound to animal police academy. However, when he bites Bart rather than play catch with him, Bart gets a new pet - a snake - which gets loose in the school.
	399	21	"24 Minutes"	JABF12	Sunday, May 13, 2007	9.94
In a parody of 24, Bart and Lisa join forces to prevent the bullies from setting off a stink bomb at the school bake sale, and the pair gets help by many different students, including Martin.
	400	22	"You Kent Always Say What You Want"	JABF15	Sunday, May 20, 2007	9.94
In this, the 400th episode (both in terms of production and broadcast order), Homer wins the 1,000,000th ice cream cone and gets interviewed by Kent Brockman (who had to sacrifice his editorial on the War in Iraq to do it because Channel 6's sponsor is the ice cream shop from which Homer bought the ice cream), but Kent ends up demoted when he blurts a horrible curse word live on the air after Homer spills some coffee on his lap and then gets fired when his boss accuses him of being a drug addict.

Trivia

• This is one of the seasons where only some episodes are pal-pitched in some other countries.
  • The episodes include "Please Homer, Don't Hammer 'Em," "Kill Gill, Volumes I & II," "Revenge is a Dish Best Served Three Times," "Marge Gamer," "24 Minutes," and "You Kent Always Say What You Want," the latter three of which have a similar deeper pal-pitched effect like "Mobile Homer," but fully 2 notes deeper, or double pal-pitched.
  • The rest of the episodes have to be aired in some parts of the UK and France to contain the pal-pitch effect.
• "Homerazzi" is the only episode to play the full intro without any reductions unlike "G.I. D'oh," "Kill Gill, Volumes I & II," "Crook and Ladder," and "Stop, or My Dog Will Shoot!."
• Itchy and Scratchy cartoons returns in this season after season 17 was the first to not use it, though the characters were still featured in the season, albeit through a live action performace in "Girls Just Want to Have Sums".
• This is the final season to be animated traditionally on paper, though digital coloring was used starting with Season 14. For The Simpsons Movie and the next season onwards, the show uses Wacom Cintiqs for its animation.
• This is also the final "pre-movie" season overall.

DVD Release

The Season 18 DVD set was released for Region 1 on December 5, 2017 in the USA and for Region 2/Europe on December 11, 2017.

The cover features Fat Tony.

Production

Production started with the recording of JABF01 on March 11, 2006, and ended off with JABF22 on December 4, 2006.