"The Simpsons"' ninth season originally aired on the Fox network between September 1997 and May 1998, beginning on Sunday, September 21, 1997, with "The City of New York vs. Homer Simpson".
 The showrunner for the ninth production season was Mike Scully.
 The aired season contained three episodes which were hold-over episodes from season eight, which Bill Oakley and Josh Weinstein ran.
 It also contained two episodes which were run by David Mirkin, and another two hold-over episodes which were run by Al Jean and Mike Reiss.
"Lisa Goes Gaga" is the twenty-second and final 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 May 20, 2012.
 In the episode, American singer-songwriter Lady Gaga makes a visit to Springfield, where all of its residents are in a state of depression.
 Main character Lisa Simpson is arguably the most depressed person in the city, prompting Gaga to go out of her way to teach Lisa the meaning of happiness.
"Holidays of Future Passed" is the ninth 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 December 11, 2011.
 Most of the episode is set thirty years into the future, when Bart and Lisa take their children with them to Homer and Marge's house over Christmas, while a pregnant Maggie goes into labor.
 Bart has divorced his wife Jenda and is struggling to become a better father for his two boys, while Lisa has trouble connecting with her rebellious teenage daughter Zia.
 "The Simpsons" creator Matt Groening made a minor uncredited cameo appearance as a sports commentator shouting "goal!"
 during a soccer game.
Matthew "Matt" Selman (born September 9, 1971) is an American writer and producer.
 Selman grew up in Massachusetts, attended the University of Pennsylvania and was editor-in-chief of student magazine "34th Street Magazine".
 After considering a career in journalism, he decided to try to become a television writer.
 After two years of failed spec scripts he was eventually hired to write an episode of "Seinfeld" in 1996.
 Selman then joined the writing staff of "The Simpsons", where he has remained, rising to the position of executive producer.
 He has written numerous episodes of the show, including "Natural Born Kissers", "Behind the Laughter", "Trilogy of Error", "Simpsons Bible Stories" (for which he won an Annie Award), "The Dad Who Knew Too Little" (for which he won a Writers Guild of America Award), and also "The Food Wife".
 He also co-wrote the 2007 film adaptation of the show, as well as the video games "", "The Simpsons Hit and Run" and "The Simpsons Game".
Fish Police is an animated television series from Hanna-Barbera based on the comic book series created by Steve Moncuse.
 It first aired on CBS in 1992, lasting six episodes over one season.
 In February of that year, three episodes aired, then the show was axed after falling in the television ratings.
 The remaining three episodes never aired in the United States, but the entire series ran in European syndication.
 The show had a decidedly more mature tone than most other animated Hanna-Barbara shows.
 Episodes often contained innuendo and cases of mild profanity.
"Moe Goes from Rags to Riches" is the twelfth 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 January 29, 2012.
 In the episode, Moe Szyslak's old bar rag tells its history, from being a medieval French tapestry to ending up at Moe's bar.
 Meanwhile, Bart and Milhouse have an argument which prompts Milhouse to leave Bart.
 Jeremy Irons guest starred in the episode as the voice of Moe's bar rag.
"The Falcon and the D'ohman" is the season premiere of the twenty-third season of the American animated sitcom "The Simpsons".
 It originally aired on the Fox network in the United States on September 25, 2011.
 In the episode, the Springfield Nuclear Power Plant hires a new security guard named Wayne and Homer soon becomes friends with him.
 "The Falcon and the D'ohman" also reveals the fate of the relationship between the characters Ned Flanders and Edna Krabappel that was initiated in the previous episode of the series, "The Ned-Liest Catch", that aired in May 2011.
"The Simpsons"' twenty-third season began airing on Fox on September 25, 2011, and ended May 20, 2012.
 The showrunner for the season was Al Jean, with three episodes ran with Matt Selman, one of those he also wrote himself.
 The show's 500th episode, "At Long Last Leave", aired February 19, 2012.
"Treehouse of Horror XXII" is the third episode of the twenty-third season and the twenty-second Halloween episode of the American animated sitcom "The Simpsons".
 It originally aired on the Fox network in the United States on October 30, 2011.
 The episode is part of the "Treehouse of Horror" series, which is an episode divided into three separate stories and an opening that is a parody of scary or Halloween themed stories.
 This episode's stories were primarily spoofs of the French film "The Diving Bell and the Butterfly", the television series "Dexter", and the American film "Avatar".
 The opening was a parody of the autobiographical film "127 Hours", in which the subject Aron Ralston loses an arm.
"Replaceable You" is the fourth 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 November 6, 2011.
 In the episode, Homer gets a new assistant named Roz who is secretly out to steal his job.
 Meanwhile, Bart teams up with Martin Prince for the upcoming Springfield Elementary science fair, constructing robot baby seals that become popular with the senior citizens at the Springfield Retirement Castle.
 The role of Roz was played by American actress Jane Lynch.
 "Replaceable You" was seen by approximately eight million viewers during its original broadcast, and it has received mixed reviews from critics.

Question: When was the  American writer and producer born who ran three episodes of "The Simpsons"' twenty-third season?
Answer: September 9, 1971