Question: the fictional character Lionel Hutz first appeared in a Simpson episode that originally aired in which year ?

Context paragraphs:
Lionel Hutz: Lionel Hutz is a fictional character in the animated television series "The Simpsons".  He was voiced by Phil Hartman, and his first appearance was in the season two episode "Bart Gets Hit by a Car".  Hutz is a stereotypical ambulance chasing lawyer in Springfield with questionable competence and ethics.  He is nevertheless (or thus) often hired by the Simpsons.  Following Hartman's murder in 1998, Hutz was retired out of respect; and his final speaking role was in the season nine episode "Realty Bites" five months earlier.

22 Short Films About Springfield: "22 Short Films About Springfield" is the twenty-first episode of "The Simpsons"<nowiki>'</nowiki> seventh season.  It originally aired on the Fox network in the United States on April 14, 1996.  It was written by Richard Appel, David S. Cohen, Jonathan Collier, Jennifer Crittenden, Greg Daniels, Brent Forrester, Dan Greaney, Rachel Pulido, Steve Tompkins, Josh Weinstein, Bill Oakley, and Matt Groening, with the writing being supervised by Daniels.  The episode was directed by Jim Reardon.  Phil Hartman guest starred as Lionel Hutz and the hospital board chairman.  The episode looks into the lives of other Springfield residents in a series of linked stories and originated from the end segment of the season four episode "The Front".  The episode is a loose parody of "Pulp Fiction", which gave the staff the idea of a possible spin-off from "The Simpsons".  The title is a reference to the film "Thirty Two Short Films About Glenn Gould".  The episode received positive reviews from critics.

Lost Our Lisa: "Lost Our Lisa" is the twenty-fourth episode in the ninth season of the American animated television series "The Simpsons".  It originally aired on the Fox network in the United States on May 10, 1998.  The episode contains the last appearance of the character Lionel Hutz.  When Lisa learns that Marge cannot give her a ride to the museum and forbids her to take the bus, she tricks Homer into giving her permission.  After Lisa gets lost, Homer goes looking for her and the two end up visiting the museum together.  The episode is analyzed in the books "Planet Simpson", "The Psychology of the Simpsons: D'oh! ", and "", and received positive mention in "I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide".

Bart Gets Hit by a Car: "Bart Gets Hit by a Car" is the tenth episode of "The Simpsons"<nowiki>'</nowiki> second season.  It originally aired on the Fox network in the United States on January 10, 1991.  At the start of the episode, Bart is hit by Mr. Burns<nowiki>'</nowiki> car.  Prompted by ambulance-chasing lawyer Lionel Hutz and quack doctor Dr. Nick Riviera, the Simpsons sue Mr. Burns, seeking extensive damages for Bart's injuries.  Hutz and Dr. Nick exaggerate Bart's injuries so they can gain sympathy at the trial.  Marge is against the whole thing and grows concerned with the fact that Homer is asking Bart to lie.

The Day the Violence Died: "The Day the Violence Died" is the eighteenth episode of "The Simpsons"' seventh season.  It originally aired on the Fox network in the United States on March 17, 1996.  It was written by John Swartzwelder and directed by Wes Archer.  Kirk Douglas guest stars as Chester J. Lampwick, Alex Rocco as Roger Meyers Jr., Jack Sheldon as an anthropomorphic constitutional amendment, Suzanne Somers as herself, and Phil Hartman as Lionel Hutz.  The end of the episode features Lester and Eliza, versions of Bart and Lisa Simpson that appeared in "The Tracey Ullman Show" in the 1980s.

Lisa Simpson: Lisa Marie Simpson is a fictional character in the animated television series "The Simpsons".  She is the middle child and most intelligent of the Simpson family.  Voiced by Yeardley Smith, Lisa first appeared on television in "The Tracey Ullman Show" short "Good Night" on April 19, 1987.  Cartoonist Matt Groening created and designed her while waiting to meet James L. Brooks.  Groening had been invited to pitch a series of shorts based on his comic "Life in Hell", but instead decided to create a new set of characters.  He named the elder Simpson daughter after his younger sister Lisa Groening.  After appearing on "The Tracey Ullman Show" for three years, the Simpson family were moved to their own series on Fox, which debuted on December 17, 1989.

The Simpsons Spin-Off Showcase: "The Simpsons Spin-Off Showcase" is the twenty-fourth episode of the eighth season of "The Simpsons".  It originally aired on the Fox network in the United States on May 11, 1997.  The episode centers on fictional pilot episodes of non-existent television series derived from "The Simpsons", and is a parody of the tendency of networks to spin off characters from a hit series.  As such it includes references to many different TV series.  The first fictional spin-off is "Chief Wiggum P.I.", a cop-drama featuring Chief Wiggum and Seymour Skinner.  The second is "The Love-matic Grampa", a sitcom featuring Moe Szyslak who receives dating advice from Abraham Simpson, whose ghost is possessing a love testing machine.  The final segment is "The Simpson Family Smile-Time Variety Hour", a variety show featuring the Simpson family except for Lisa, who has been replaced.

Marge in Chains: "Marge in Chains" is the 21st episode of "The Simpsons"<nowiki>'</nowiki> fourth season.  It originally aired on the Fox network in the United States on May 6, 1993.  In the episode, Marge is arrested for shoplifting after forgetting to pay for an item at the Kwik-E-Mart.  The family hires attorney Lionel Hutz to defend her at trial, but she is found guilty and sentenced to 30 days imprisonment.  Homer, and the rest of the family have trouble coping without Marge.  The townspeople start a riot when an annual bake sale missing Marge fails to raise enough money for a statue of Abraham Lincoln and they have to settle for a statue of Jimmy Carter.  Mayor Quimby has Marge released from jail in order to save his career and quell the riot.

The Itchy &amp; Scratchy Show: The Itchy & Scratchy Show (often shortened as Itchy & Scratchy) is a running gag and fictional animated television series featured in the American animated television series "The Simpsons".  It usually appears as a part of "The Krusty the Clown Show", watched regularly by Bart Simpson and Lisa Simpson.  Itself an animated cartoon, "The Itchy & Scratchy Show" depicts a sadistic anthropomorphic blue mouse, Itchy (voiced by Dan Castellaneta), who repeatedly maims and kills an anthropomorphic, hapless threadbare black cat, Scratchy (voiced by Harry Shearer).  The cartoon first appeared in "The Tracey Ullman Show" short "The Bart Simpson Show", which originally aired November 20, 1988.  The cartoon's first appearance in "The Simpsons" was in the 1990 episode "There's No Disgrace Like Home".  Typically presented as 15-to-60-second-long cartoons, the show is filled with gratuitous violence.  "The Simpsons" also occasionally features characters who are involved with the production of "The Itchy & Scratchy Show", including Roger Meyers Jr. (voiced by Alex Rocco, and, later, Hank Azaria), who runs the studio and produces the show.

Lionel Luthor: Lionel Luthor is a fictional character portrayed by John Glover in the television series "Smallville".  The character was initially a recurring guest in season one, and became a series regular in season two and continued until being written out of the show in season seven.  The character returned to the show in season ten again as a recurring guest role as a parallel universe (Earth-2) version of the character.  In "Smallville", Lionel Luthor is the father of Lex Luthor (Michael Rosenbaum), and founder and CEO of LuthorCorp.  Lex Luthor's father was first introduced in "Superman" comics by Jerry Siegel in 1961 and has since appeared in other Superman-related media under different names.  "Smallville" is the first appearance in which the character has been an intricate part of a Superman adaptation.  Series developers Alfred Gough and Miles Millar created Lionel Luthor for "Smallville" to provide an antithesis to the parenting style of Jonathan Kent (John Schneider) and Martha Kent (Annette O'Toole).

Supporting paragraphs: Lionel Hutz Bart Gets Hit by a Car
Answer: 1991