[3] Executive producer Al Jean stated that Edna Krabappel was retired from the show following the death of Marcia Wallace on October 25, 2013.

[4] In this season, Homer sells his Mapple stock to buy a bowling ball; Marge blames herself and Kiss for Bart's rebellious streak ("Four Regrettings and a Funeral"); Lisa becomes a cheerleader for Springfield's football team; and Homer delivers a baby ("Labor Pains").

Guest stars for this season include Judd Apatow, Will Arnett, Anderson Cooper, Harlan Ellison, Zach Galifianakis, Stan Lee, Eva Longoria, Rachel Maddow, Elisabeth Moss, Joe Namath, Daniel Radcliffe, Aaron Sorkin, Max von Sydow, Kristen Wiig, and Kelsey Grammer.

Guest stars for the season included Kristen Wiig, journalist Rachel Maddow, Elisabeth Moss, Eva Longoria, writer Harlan Ellison, comic book writer Stan Lee, Daniel Radcliffe, and Zach Galifianakis.

Homer rescues Bart by shooting his bowling ball into the basket, and its weight brings it to the ground.

Marge invites an old pen pal to stay with Homer and cross items off his childhood wish list.

After a night of playing poker with Moe, Lenny, and Carl, Homer finds himself in an elevator with a young mother named Gretchen, who is in labor and needs someone to help her keep calm.

Meanwhile, Lisa helps the local football cheerleading team unionize and negotiate for better wages and working conditions.

The new girl wins in a close vote, but the exit poll says that more students agree with Lisa's views.

When Principal Skinner promises that the most well-behaved at Springfield Elementary will get to ride in a submarine, Bart does everything possible to become a model student.

Feeling guilty, Marge sends money and an apology letter to the studios, who call the FBI.

When Homer meets Kumiko's father, he tells him about Comic Book Guy's worst qualities.

Comic Book Guy offers to get a job with his engineering degree, but Kumiko's father decides he approves of the relationship the way it is.

A chemical engineering company invites the Lisa and her family to visit, and they discover that Sideshow Bob has become their chief scientist.

When the Retirement Castle is closed for health violations, Marge invites Grampa and two other old people to live at the Simpsons' house.

Meanwhile, Bart defends Nelson's decision to wear his mother's underwear, causing the other bullies to invite him to join them.

The Simpsons' living room art is destroyed, and Marge buys a new painting at the Van Houtens' yard sale to replace it.

To settle their differences, Homer pays the forger for paintings for both the Simpsons and Van Houtens.

Lisa's goes viral, so much so that Homer is called to referee games in the World Cup in Brazil.

When Bart tells him that he was not Lisa's first choice, a saddened Homer begins to accept the bribes.

She asks Homer to take Lisa to dinner and act gentlemanly so she loses interest in Lucas.

However, Milhouse finds his stolen tablet computer with Bart and helps the police arrest Snake.

[37] Executive producer Matt Selman was also the showrunner for several episodes, a role he performed since the twenty-third season.

[38] Commenting on the series' longevity in its twenty-fifth season, Jean stated that the writer continue to generate ideas based on their own present-day lives as well as their childhoods in addition to current events.

[39] This season featured the final performances by Marcia Wallace as Edna Krabappel prior to her death.

As a tribute to both, Edna Krabappel and Payne were shown with halos and angel wings in the opening sequence for "White Christmas Blues.

"[41] In addition, it featured the final episode written by Billy Kimball and Ian Maxtone-Graham before their departure from the series.

"[50] In addition, Re-Recording Mixers Mark Linden and Tara A. Paul were nominated for a Outstanding Sound Mixing for their work in "Married to the Blob.

"[52] Writers Michael Nobori, J. Stewart Burns, and David Steinberg were also nominated for the same award for episodes written this season.

[54] At the 42nd Annie Awards, writers Tim Long and Rob LaZebnik were nominated for Outstanding Achievement for Writing, and guest animator Michał Socha was nominated for Best Animated Short Subject for his couch gag in "What to Expect When Bart's Expecting.