The longest-running American scripted primetime television series is preparing for another huge party. The Simpsons will mark its 800th episode on Fox with a special installment packed with famous guest voices, including Noah Wyle from the hit medical drama The Pitt, Kevin Bacon, and Quinta Brunson. The milestone episode, titled “Irrational Treasure,” is scheduled to air on Sunday, February 15, 2026.
This celebration comes with a unique twist for the Simpson family, involving a trip to Philadelphia, a dog show, and a historical treasure hunt. The episode will also feature special musical contributions from the iconic R&B group Boyz II Men.
A Pennsylvania-Themed Adventure with Major Guest Stars
The 800th episode centers on a family trip that quickly turns into a wild adventure. The story begins with Marge Simpson deciding to get the family dog, Santa’s Little Helper, into better shape. Her plan leads to entering him in canine agility competitions and a trip to the National Dog Show in Philadelphia.
Once in the City of Brotherly Love, Marge and Homer find themselves pulled into a “historical conspiracy adventure worthy of a National Treasure movie”. The Pennsylvania setting directly inspired the list of special guest stars, many of whom have ties to the state or shows set there.
The confirmed guest voice cast includes:
- Noah Wyle as a doctor. Wyle is currently starring in and producing the acclaimed Max medical drama The Pitt, for which he recently won an Emmy Award.
- Kevin Bacon as a concierge.
- Quinta Brunson, the star and creator of the Philadelphia-set comedy Abbott Elementary, voicing a new character named Adrienne.
- Questlove, the drummer and co-frontman for The Roots (Philadelphia’s legendary hip-hop band), as a tour guide.
- Katherine LaNasa and Taylor Dearden, who co-star with Noah Wyle on The Pitt, playing a nurse and an intern, respectively.
- The vocal group Boyz II Men, who will perform special versions of the show’s famous opening theme and closing credits music.
The episode’s executive producer, Matt Selman, previously teased, “I’ll say this: It involves the dog. That’s a big tease. How about this, I’ll give you a little more: The dog gets fat”.
Understanding The Simpsons Episode Milestones
The announcement of this 800th episode requires a bit of explanation for dedicated fans. Another episode titled “Guess Who’s Coming to Skinner” was celebrated as the 800th episode when it aired on December 7, 2025. That episode featured guest stars like Kieran Culkin and Karen Gillan.
The difference lies in how the episodes are counted. The earlier episode was the 800th overall episode to be produced. The upcoming “Irrational Treasure” is significant as the 800th episode to air on the Fox network. This distinction highlights the show’s complex history, including its initial shorts on The Tracey Ullman Show before becoming a standalone series.
The Show’s Unprecedented Longevity and Future
Reaching 800 aired episodes is a feat no other American scripted series has accomplished. The Simpsons first premiered in 1989 and has been a staple of television and popular culture ever since. The show is currently in the middle of its 37th season.
The future for the residents of Springfield is secure for years to come. Fox has already renewed the series for seasons 38, 39, and 40, guaranteeing new episodes through at least 2029. Furthermore, a second Simpsons movie is in development and is scheduled for release on September 3, 2027.
The 800th episode will be followed immediately by the Season 37 finale, which will air at 8:30 PM ET on the same night, February 15.
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