"Bart the Murderer" is the fourth episode of "The Simpsons"<nowiki>'</nowiki> third season.
 It originally aired on the Fox network in the United States on October 10, 1991.
 In the episode, Bart stumbles upon the Mafia bar, Legitimate Businessman's Social Club, after having a terrible day at school.
 The owner of the bar, mobster Fat Tony, hires Bart to work as its bartender.
 When Principal Skinner goes missing after punishing Bart in school, Bart is soon accused of having him murdered and is put on trial.
 As he is about to get convicted, Skinner arrives and explains that he was accidentally trapped in his garage all week, clearing Bart.
"The Real Housewives of Fat Tony" is the nineteenth episode of "The Simpsons"<nowiki>'</nowiki> twenty-second season.
 It first aired on the Fox network in the United States on May 1, 2011.
 This episode mainly centers around Marge Simpson and one of her older sisters, Selma, who falls in love with mobster Fat Tony.
 Selma later begins the glamorous lifestyle associated with being in the Mafia and the couple agree to marry each other.
 The marriage leads to tension between Marge and Selma.
 Fat Tony later invites Homer & Marge to his mansion in New Jersey, in hopes of mending the sisters' relationship.
 Meanwhile, Bart acquires an ability to trace the location of truffles, which leads Lisa to attest to her growing greed for eating truffles.
"Grift of the Magi" is the ninth episode of the eleventh season of the American animated television sitcom "The Simpsons".
 It originally aired on the Fox network in the United States on December 19, 1999.
 In the episode, mafia boss Fat Tony successfully extorts a large sum of money from Springfield Elementary School, forcing Principal Skinner to close it down.
 However, a toy company called Kid First Industries, led by Jim Hope, later buys the school and privatizes it.
 Classes now start focusing on toys and marketing only, and soon a new toy called Funzo that resembles the children's ideas is released by Kid First Industries in time for the Christmas shopping season.
 Bart and Lisa decide to destroy all Funzos in Springfield but Gary Coleman, Kid First Industries' security guard, tries to intercept them.
Anthony "Fat Tony" Salerno (August 15, 1911 – July 27, 1992) was a New York mobster who served as underboss and front boss of the Genovese crime family from 1981 until his conviction in 1986.
 Usually seen wearing a fedora and chomping on a cigar, he was nicknamed "Fat Tony" due to his size.
"Mayored to the Mob" is the ninth episode of "The Simpsons"' tenth season.
 It originally aired on the Fox network in the United States on December 20, 1998.
 After Homer prevents Mayor Quimby and Mark Hamill from being trampled at a convention, Homer trains to become a bodyguard and is employed by Quimby.
 After Homer discovers Quimby has been making corrupt deals with Fat Tony and forces him to end the deal, Fat Tony threatens to kill Quimby, leaving Homer to defend the Mayor from threats.
 The episode was written by Ron Hauge and directed by Swinton O. Scott III, and received positive reviews from critics overall.
"The Mook, the Chef, the Wife and Her Homer" is the season premiere of "The Simpsons"’ eighteenth season.
 It first aired on the Fox network in the United States on September 10, 2006.
 In the episode, Fat Tony is put out of commission by a rival family, and Homer and Bart take over the Springfield Mafia.
"Bart Stops to Smell the Roosevelts" is the second episode of the twenty-third season of the American animated sitcom "The Simpsons".
 It originally aired on the Fox network in the United States on October 2, 2011.
 The episode was the first to feature Superintendent Chalmers as the central character and Chalmers' flashbacks references the films "The Breakfast Club" and "Fight Club".
 In the episode, Principal Skinner challenges Superintendent Chalmers to take over Bart's education after one of his pranks.
 Chalmers accepts and starts teaching Bart about Theodore Roosevelt and manliness.
 After he takes Bart and his friends on an unauthorized field trip which results in one of the children breaking an arm, Chalmers is fired.
 Bart and his friends then take over the school in an effort to save his job.
Marion Anthony "Fat Tony" D'Amico is a recurring character in the animated sitcom "The Simpsons".
 He is voiced by Joe Mantegna and first appeared in the third season episode "Bart the Murderer".
 Fat Tony is a gangster and the underboss of the Springfield Mafia.
 His henchmen include Legs, Louie, and Johnny Tightlips, and he answers to Don Vittorio DiMaggio.
 The character somewhat resembles real-life mobster "Fat Tony" Salerno.
 While serving his terms, real-life mobster "Fat Tony" Salerno died in a federal facility located in Springfield, Missouri.
"Worst Episode Ever" is the eleventh episode of "The Simpsons"<nowiki>'</nowiki> twelfth season.
 It first aired on the Fox network in the United States on February 4, 2001.
 In the episode, Bart and Milhouse are banned from The Android's Dungeon after stopping Comic Book Guy from buying a box of priceless "Star Wars" memorabilia for $5.
 However, when Comic Book Guy suffers a massive heart attack after Tom Savini's show, he hires Bart and Milhouse as his replacements while he leaves his job to make friends.
"Diggs" is the twelfth episode of the 25th season of the American animated sitcom "The Simpsons", and the 542nd episode of the series.
 It premiered on the Fox network in the United States on March 9, 2014.
 The episode was written by Dan Greaney and Allen Glazier and directed by Michael Polcino.
 In the episode, Bart makes friends with a transfer student named Diggs, an expert in falconry who saves Bart from the wrath of the Springfield Elementary bullies – and who intends to take to the sky himself, which makes Bart worry about Diggs' sanity.

Question:  "Fat Tony" D'Amico hires Bart to work as bartender in what animated sitcom?
Answer: The Simpsons