Question: The South Park Episode before Ass Burgers first aired on which date ?
Context: "A Song of Ass and Fire" is the eighth episode in the seventeenth season of the American animated television series "South Park".  The 245th episode of the series overall, it first aired on Comedy Central in the United States on November 20, 2013.  The episode serves as a continuation of the previous episode, "Black Friday", in which the children of South Park, role-playing as characters from "Game of Thrones", are split into two factions over whether to collectively purchase bargain-priced Xbox One or PlayStation 4 video game consoles at an upcoming Black Friday sale at the local mall, where Randy Marsh has been made the Captain of mall security.  The story arc concludes with the following episode, "Titties and Dragons". "Black Friday" is the seventh episode in the seventeenth season of the American animated television series "South Park".  The 244th episode of the series overall, it premiered on Comedy Central in the United States on November 13, 2013.  The episode is the first of a three-episode story arc, which continues with "A Song of Ass and Fire", and concludes with "Titties and Dragons".  The plot, which employs themes and motifs from the TV series "Game of Thrones", concerns the characters' anticipation of a Black Friday sale, with Randy Marsh taking a temporary job as a mall security guard to gain an advantage over the holiday shopping crowds, and the children of South Park split into two factions over whether to collectively purchase bargain-priced Xbox One or PlayStation 4 video game consoles to facilitate their online group gaming. "Ass Burgers" is the eighth episode of "South Park"' s fifteenth season and the 217th episode of the series overall.  It first aired in the U.S. on October 5, 2011, on Comedy Central.  The episode picks up where the previous episode, "You're Getting Old", left off.  Stan's cynicism is mistakenly blamed on his recent vaccinations and diagnosed as Asperger syndrome, a criticism of anti-vaccination proponents.  Cartman mishears the condition as "ass burgers" and opens a food stand in which the secret ingredient involves stuffing his underwear with hamburgers.  The episode is rated TV-MA-L in the United States. "Douche and Turd" is the eighth episode of the eighth season of the animated television series "South Park", and the 119th episode overall.  Written by series co-creator Trey Parker, it first aired on Comedy Central in the United States on October 27, 2004, just before the 2004 presidential election.  In the episode, PETA forces South Park Elementary to change their school mascot, so an election is held to determine a new mascot.  Stan ends up getting exiled from South Park after refusing to vote. "You're Getting Old" is the seventh episode and the mid-season finale of the fifteenth season of the American animated television series "South Park", and the 216th episode of the series overall.  It first aired on Comedy Central in the United States on June 8, 2011.  In the episode, Stan begins to develop a profound sense of cynicism after celebrating his tenth birthday, where he is literally seeing everything as "crap".  Meanwhile, Randy latches onto a new music genre, "tween wave," in an attempt to fit in, which causes problems in his marriage with Sharon. "Lice Capades" is the third episode in the eleventh season of the American animated television series "South Park".  The 156th episode of the series overall, it first aired on Comedy Central in the United States on March 21, 2007.  In the episode, all the students at South Park Elementary are checked for head lice and, to his horror, Clyde discovers that he has lice.  He tries to hide it from his classmates, knowing they will make fun of (if not, torture) him.  The episode was written and directed by series co-creator Trey Parker. "Erection Day" is the seventh episode in the ninth season of the American animated television series "South Park".  The 132nd episode overall, it first aired on Comedy Central in the United States on April 20, 2005.  In the episode, South Park Elementary's talent show is coming up and everyone expects Jimmy to win.  Jimmy is elated to perform his stand-up comedy routines, but begins to suffer from unwanted erections and tries to resolve the problem. "Jared Has Aides" is the first episode of the sixth season of the adult American animated television series "South Park".  It first aired on Comedy Central in the United States on March 6, 2002.  The episode was rated TV-MA in the United States, except on syndicated broadcasts, where it is rated TV-14 instead.  In the episode, weight loss advocate Jared Fogle incurs the wrath of South Park after he announces that he lost weight because he has aides (misinterpreted as AIDS).  This leads the boys to try to use Butters as their own advocate for City Wok.  The episode also parodies the film "Philadelphia". "Titties and Dragons" is the ninth episode in the seventeenth season of the American animated television series "South Park".  The 246th episode of the series overall, it premiered on Comedy Central in the United States on December 4, 2013.  It is the conclusion of a three-episode story arc that began with "Black Friday", and continued with "A Song of Ass and Fire".  The story centers upon the children of South Park, role playing as characters from "Game of Thrones", split into two factions over whether to collectively purchase bargain-priced Xbox One or PlayStation 4 video game consoles at an upcoming Black Friday sale at the local mall, where Randy Marsh has been made the Captain of mall security.  The episode received critical acclaim. "Major Boobage" is the third episode in season 12 of the American animated television series "South Park".  The 170th episode of the series overall, it originally aired on Comedy Central in the United States on March 26, 2008.  The episode was co-written by series creators Trey Parker and Matt Stone; it was the first South Park episode since 2000 not solely written by Parker, ending a streak of 120 consecutive straight solo episodes.  The previous episode co-written by Stone was "The Tooth Fairy's Tats 2000".
Answer: June 8, 2011