Question: What Scream Queens episode is also the name of a major sales event?
Context: "Seven Minutes in Hell" is the sixth episode of the horror black comedy series "Scream Queens".  It first aired on October 20, 2015 on Fox.  The episode directed by Michael Uppendahl and written by Ryan Murphy.  In this episode, Chanel (Emma Roberts) makes a surprising decision: to protect herself from the Red Devil by leaving Zayday in position of power and win the election as president of Kappa Kappa Tau.  When the Kappa girls hold a slumber party, it costs the life of some people and a shocking discovery is made.  The episode title refers to the game Seven Minutes in Heaven, one of the ones played by the Kappa Kappa Tau sisters and Dickie Dollar Scholars brothers in this episode as part of the slumber party. "Thanksgiving" is the tenth episode of the horror black comedy series "Scream Queens".  It premiered on November 24, 2015 on Fox.  The episode was directed by Michael Lehmann and written by Brad Falchuk.  The episode features special guest star Chad Michael Murray as Brad Radwell, the older brother of Chad Radwell (Glen Powell).  The rest of the Radwell family are played by guest stars Alan Thicke, Julia Duffy, Patrick Schwarzenegger, and Rachele Brooke Smith.  As this is the Thanksgiving special episode, the episode centers around the main characters' activities during Thanksgiving. Black Friday ( ) is the day following Thanksgiving Day in the United States (the fourth Thursday of November). "Mommie Dearest" is the eighth episode of the horror black comedy series "Scream Queens".  It first aired on November 10, 2015 on Fox.  The episode was directed by Michael Uppendahl and written by Ian Brennan.  In this episode, Grace (Skyler Samuels) is getting more determined to find out about the bathtub baby identity, believing it to be her, just as the shocking truth is revealed.  Dean Munsch (Jamie Lee Curtis) goes psycho after the Red Devils attacked her, and Denise (Niecy Nash) becomes the new house mother for Kappa Kappa Tau.  The episode's title is a reference to the film of the same name, released in 1981. "Black Friday" is the eleventh episode of the horror black comedy series "Scream Queens".  It premiered on December 1, 2015 on Fox.  The episode was directed by Bradley Buecker and written by Ryan Murphy, Brad Falchuk, and Ian Brennan.  In this episode, The Red Devils attempt to crash The Chanels' shopping spree in celebration of their favorite holiday, Black Friday.  As the Kappa Kappa Tau girls conclude that Dean Munsch (Jamie Lee Curtis) is the Devil, they make several attempts to kill her.  Meanwhile, someone else confesses to being the murderer. Scream Queens is an American comedy horror television series that aired on Fox from September 22, 2015 to December 20, 2016.  The series was created by Ryan Murphy, Brad Falchuk, and Ian Brennan and produced by Murphy, Falchuk, Brennan, and Alexis Martin Woodall.  "Scream Queens" is produced by 20th Century Fox Television, Ryan Murphy Productions, Brad Falchuck Teley-vision, and Prospect Films.  The first season takes place at the fictional Wallace University, being produced in New Orleans, Louisiana.  One of the sororities, Kappa Kappa Tau, becomes plagued by a serial killer, who uses the university's Red Devil mascot as a disguise. "The Final Girl(s)" is the season finale and the thirteenth episode of the horror black comedy series "Scream Queens".  It premiered on December 8, 2015 on Fox along with the previous episode, "Dorkus", as the special two-hour season finale.  The episode was directed by Brad Falchuk and written by Falchuk and his co-creators, Ryan Murphy, and Ian Brennan.  In this episode, the last and main Red Devil is finally revealed, and the episode also focuses on the aftermath of the revelation that impacts the characters' fates. "Ghost Stories" is the ninth episode of the horror black comedy series "Scream Queens".  It first aired on November 17, 2015 on Fox.  The episode was directed by Michael Uppendahl and written by Ryan Murphy.  The episode focuses on Denise (Niecy Nash)'s attempt to calm The Chanels down by telling them ghost stories and urban legends, which start to become true.  The episode also features the return of special guest star Nick Jonas as Boone Clemens, whose activities while being absent are revealed in this episode. ReserVec was a computerized reservation system developed by Ferranti Canada for Trans-Canada Airlines (TCA, today's Air Canada) in the late 1950s.  It appears to be the first such system ever developed, predating the more famous SABRE system in the US by about two years.  Although Ferranti had high hopes that the system would be used by other airlines, no further sales were forthcoming and development of the system ended.  Major portions of the transistor-based circuit design were put to good use in the Ferranti-Packard 6000 computer, which would later go on to see major sales in Europe as the ICT 1904. "Scream Again" is the season premiere and the fourteenth episode of the horror black comedy series "Scream Queens", which premiered on Fox on September 20, 2016.  It was directed by Brad Falchuk and written by Falchuk and his co-creators, Ryan Murphy and Ian Brennan.  The episode was watched by 2.17 million viewers and received mixed to positive reviews from critics.
Answer: Black Friday