S18 E2-Jazzy and the Pussycats
S18 E4-Treehouse of Horror XVII
S18 E5-G.I. (Annoyed Grunt)
S18 E6-Moe'N'a Lisa
S18 E8-The Haw-Hawed Couple
S18 E9-Kill Gil, Volumes I & II
S18 E10-The Wife Aquatic
S18 E12-Little Big Girl
S18 E13-Springfield Up
S18 E14-Yokel Chords
S18 E15-Rome-Old and Juli-Eh
S18 E17-Marge Gamer
S18 E18-The Boys of Bummer
S18 E19-Crook and Ladder
S18 E20-Stop! Or My Dog Will Shoot!
S18 E21-24 Minutes
Videos: Trailers, Teasers, Featurettes
The Simpsons' 18th season aired from September 10, 2006 to May 20, 2007. The season contained seven hold-over episodes from the season 17 production line. Al Jean served as the Showrunner, a position he has held since the thirteenth season. The season finale, "You Kent Always Say What You Want", was the series' 400th episode. Additionally, the Simpsons franchise celebrated its 20th anniversary, as it has been on the air since April 1987, beginning with shorts on The Tracey Ullman Show. Season 18 included guest appearances by Metallica, Tom Wolfe, Gore Vidal, Michael Chabon, Jonathan Franzen, Fran Drescher, The White Stripes, Kiefer Sutherland, Mary Lynn Rajskub, Richard Lewis, Phil McGraw, Elvis Stojko, Natalie Portman, Jon Lovitz, Betty White, Eric Idle, Sir Mix-a-Lot, Stephen Sondheim, Cristiano Ronaldo, Meg Ryan, Andy Dick, Peter Bogdanovich, James Patterson and others.
Streaming, rent, or buy The Simpsons – Season 18:
Currently you are able to watch "The Simpsons - Season 18" streaming on Disney Plus.