Question: When did the sixth episode of the seventh season of the American animated science fiction comedy series created by Matt Groening for the Fox Broadcast Company originally air?

Context paragraphs:
List of The Simpsons episodes: "The Simpsons" is an American animated television sitcom created by Matt Groening for the Fox Broadcasting Company.  It is a satirical depiction of a middle class American lifestyle epitomized by its eponymous family, which consists of Homer, Marge, Bart, Lisa, and Maggie.  The show is set in the fictional town of Springfield, and lampoons American culture, society, and television, as well as many aspects of the human condition.  The family was conceived by Groening shortly before a pitch for a series of animated shorts with producer James L. Brooks.  Groening created a dysfunctional family and named the characters after members of his own family, substituting Bart for his own name.  The shorts became a part of the Fox series "The Tracey Ullman Show" on April 19, 1987.  After a three-season run, the sketch was developed into a half-hour prime-time show that was an early hit for Fox.

List of Futurama episodes: The American animated science fiction sitcom "Futurama", created by Matt Groening for the Fox Broadcasting Company, aired on Fox from March 28, 1999, to August 10, 2003; Cartoon Network's Adult Swim aired reruns of the show from 2003 through 2007.  Following a commitment from 20th Century Fox Television to produce four straight-to-DVD "Futurama" films, Comedy Central announced on June 23, 2006 that they were resurrecting the show and would air the films as new "Futurama" episodes (reconfiguring each film into four episodes) after each film's DVD release.  Comedy Central began airing "Futurama" reruns in January 2008 and broadcast on March 23, 2008.  Following the four films (considered the fifth season of the show), Comedy Central has broadcast a sixth season of twenty-six episodes, split over 2010 and 2011.  A seventh season was announced in March 2011 and debuted in the summer of 2012.

Futurama: Futurama is an American animated science fiction comedy series created by Matt Groening for the Fox Broadcasting Company.  The series follows the adventures of a late-20th-century New York City pizza delivery boy, Philip J. Fry, who, after being unwittingly cryogenically frozen for one thousand years, finds employment at Planet Express, an interplanetary delivery company in the retro-futuristic 31st century.  The series was envisioned by Groening in the mid-1990s while working on "The Simpsons"; he later brought David X. Cohen aboard to develop storylines and characters to pitch the show to Fox.

Politics in Futurama: The animated science fiction show "Futurama" presents a satirical look at politics and current affairs in a number of its episodes.  Series creator Matt Groening intended from the outset that "Futurama" would lampoon not only the conventions of science fiction, but elements of present-day life, serving as a form of political and social satire.

The Butterjunk Effect: "The Butterjunk Effect" is the sixth episode of the seventh season of the animated sitcom "Futurama".  It originally aired on Comedy Central on July 18, 2012.

Simpsorama: "Simpsorama" is the sixth episode of the twenty-sixth season of the animated television series "The Simpsons", and the 558th episode of the series overall.  It originally aired on the Fox network in the United States on November 9, 2014.  "Simpsorama" is a crossover with "Futurama", another animated series created by "The Simpsons" creator Matt Groening, that had previously aired on Fox and later Comedy Central before concluding in September 2013.

Futurama (disambiguation): Futurama is an American animated science fiction sitcom created by Matt Groening.

List of recurring Futurama characters: "Futurama" is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company.  The series follows the adventures of a late-20th-century New York City pizza delivery boy, Philip J. Fry, who, after being unwittingly cryogenically frozen for one thousand years, finds employment at Planet Express, an interplanetary delivery company in the retro-futuristic 31st century.

List of The Simpsons video games: "The Simpsons" is an American animated television sitcom created by Matt Groening for the Fox Broadcasting Company.  The series is a satirical parody of a middle class American lifestyle epitomized by its eponymous family, which consists of Homer, Marge, Bart, Lisa and Maggie.  It is set in the fictional town of Springfield, and lampoons American culture, society and television, and many aspects of the human condition.  The family was conceived by Groening shortly before a pitch for a series of animated shorts with producer James L. Brooks.  Groening created a dysfunctional family and named the characters after members of his own family, substituting Bart for his own name.  The shorts became a part of "The Tracey Ullman Show" on April 19, 1987 and after a three-season run, the sketch was developed into a half-hour prime time show and became a hit series for Fox.  The growing popularity of the series motivated video game developers to create video games based on the series.  Two pinball machines have also been produced; one self-titled, that was only made available for a limited time after the first season finale (1990) and "The Simpsons Pinball Party" (2003).  Additionally, several handheld device games have been released, such as "Bartman: Avenger of Evil" (1990) and "Bart Simpson's Cupcake Crisis" (1991).

List of The Simpsons home video releases: "The Simpsons" is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company (Fox).  The series is a satirical parody of a middle class American lifestyle epitomized by its eponymous family, which consists of Homer, Marge, Bart, Lisa and Maggie.  The show is set in the fictional town of Springfield, and lampoons American culture, society and television, and many aspects of the human condition.  The family was conceived by Groening shortly before a pitch for a series of animated shorts with producer James L. Brooks.  Groening created a dysfunctional family and named the characters after members of his own family, substituting Bart for his own name.  The shorts became a part of "The Tracey Ullman Show" on April 19, 1987.  After a three-season run, the sketch was developed into a half-hour prime time show and became a hit series for Fox.

Supporting paragraphs: The Butterjunk Effect Futurama
Answer: July 18, 2012