Question: For what NBC sketch comedy is the creator of 30 Rock best known?

full_context: Document 1: List of 30 Rock characters: "30 Rock" is an American television comedy series created by Tina Fey, which aired on NBC. The series takes place behind the scenes of a fictional live sketch comedy series, also airing on NBC; the name "30 Rock" refers to the address of the GE Building, where NBC Studios is located (30 Rockefeller Plaza). The series has an ensemble cast consisting of 14 regular cast members: Tina Fey, Alec Baldwin, Tracy Morgan, Jane Krakowski, Jack McBrayer, Scott Adsit, Judah Friedlander, Katrina Bowden, Keith Powell, Lonny Ross, John Lutz, Kevin Brown, Grizz Chapman, and Maulik Pancholy.
Document 2: Tina Fey: Elizabeth Stamatina "Tina" Fey ( ; born May 18, 1970) is an American actress, comedian, writer, and producer. She is best known for her work on the NBC sketch comedy series "Saturday Night Live" (1997–2006) and for creating the acclaimed comedy series "30 Rock" (2006–2013) and "Unbreakable Kimmy Schmidt" (2015–present). Fey is also known for her film work, with her most notable appearances including roles in "Baby Mama" (2008), "Date Night" (2010), "Muppets Most Wanted" (2014), "Sisters" (2015), and "Whiskey Tango Foxtrot" (2016).
Document 3: 30 Rock: 30 Rock is an American satirical television sitcom created by Tina Fey that ran on NBC from October 11, 2006, to January 31, 2013. The series, loosely based on Fey's experiences as head writer for "Saturday Night Live", takes place behind the scenes of a fictional live sketch comedy show depicted as airing on NBC. The series's name refers to 30 Rockefeller Plaza in New York City, the address of the Comcast Building, where the NBC Studios are located and where "Saturday Night Live" is written, produced, and performed. This series is produced by Broadway Video and Little Stranger, Inc., in association with NBCUniversal.
Document 4: List of Unbreakable Kimmy Schmidt episodes: "Unbreakable Kimmy Schmidt" is an American sitcom created by Tina Fey and Robert Carlock, starring Ellie Kemper in the title role, that has streamed on Netflix since March 6, 2015. Originally set for a 13-episode first season on NBC for spring 2015, the show was sold to Netflix and given a two-season order.
Document 5: Kristen Wiig: Kristen Carroll Wiig ( ; born August 22, 1973) is an American actress, comedian, writer, and producer. She is known for her work on the NBC sketch comedy series "Saturday Night Live" (2005–12), and such films as "Bridesmaids", "The Martian", and "Ghostbusters".
Document 6: Ellie Kemper: Elizabeth Claire Kemper (born May 2, 1980) is an American actress and comedian. She gained prominence when she starred in the NBC series "The Office" as receptionist Erin Hannon for the final five seasons. After her role in "The Office", she was cast in a leading role as Kimmy Schmidt in the Netflix comedy series "Unbreakable Kimmy Schmidt", for which she has received critical acclaim. Kemper is also known for her supporting roles in the films "Bridesmaids" (2011) and "21 Jump Street" (2012).
Document 7: Little Stranger (company): Little Stranger, Inc. is a film and television production company owned by actress and producer Tina Fey with executive vice president and long-time collaborator Eric Gurian. It is known for producing the long-running series 30 Rock and Unbreakable Kimmy Schmidt.
Document 8: 30 Rock (season 3): The third season of "30 Rock", an American television comedy series, consists of 22 episodes and began airing on October 30, 2008 on the NBC network in the United States. The season was produced by Broadway Video, Little Stranger, and NBC Universal; the executive producers were series creator Tina Fey, Lorne Michaels, Marci Klein, David Miner, and Robert Carlock.
Document 9: Unbreakable Kimmy Schmidt: Unbreakable Kimmy Schmidt is an American television sitcom created by Tina Fey and Robert Carlock, starring Ellie Kemper in the title role, that has streamed on Netflix since March 6, 2015. Originally set for a 13-episode first season on NBC for spring 2015, the show was sold to Netflix and given a two-season order.
Document 10: 30 Rock (season 1): The first season of the television comedy series "30 Rock" originally aired between October 11, 2006 and April 26, 2007 on NBC in the United States. The season was produced by Broadway Video, Little Stranger and NBC Universal, and the executive producers were series creator Tina Fey, Lorne Michaels, Joann Alfano, Marci Klein, and David Miner.
Document 11: 30 Rock (season 5): The fifth season of "30 Rock", an American television comedy series on the NBC network in the United States, began airing on September 23, 2010. NBC announced on March 5, 2010 that "30 Rock" would be returning for a fifth season in the 2010–2011 television season. Beginning with episode 11, "30 Rock" was moved to the 10:00 PM timeslot, but, as a consolation, was renewed earlier than the other NBC sitcoms. During this time, Tracy Morgan underwent an emergency operation, causing his character to be written out for several episodes.
Document 12: Amy Schumer: Amy Beth Schumer (born June 1, 1981) is an American stand-up comedian, writer, actress, and producer. She ventured into comedy in the early 2000s before appearing as a contestant on the fifth season of the NBC reality competition series "Last Comic Standing" in 2007. Since 2013, she has been the creator, co-producer, co-writer and star of the Comedy Central sketch comedy series "Inside Amy Schumer", for which she received a Peabody Award and for which Schumer has been nominated for five Primetime Emmy Awards for her work on the series, winning Outstanding Variety Sketch Series in 2015. She wrote and made her film debut in a starring role in "Trainwreck" (2015), for which she received nominations for the Writers Guild of America Award for Best Original Screenplay and the Golden Globe Award for Best Actress – Motion Picture Comedy or Musical. She published a memoir in 2016, "The Girl with the Lower Back Tattoo", which held the top position on "The New York Times" Non-Fiction Best Seller list for two weeks, and has also written for "Cosmopolitan" magazine. Schumer also starred alongside Goldie Hawn in the comedy film "Snatched" (2017).
Document 13: 30 Rock (season 6): The sixth season of "30 Rock", an American television comedy series on the NBC network in the United States, began airing on January 12, 2012. "30 Rock" was renewed for a sixth season by NBC on November 15, 2010. The season began airing mid-season to accommodate Tina Fey's pregnancy. On November 14, 2011, NBC announced that "30 Rock" would return at the new time of 8:00 pm.
Document 14: 30 Rock (season 4): The fourth season of "30 Rock", an American television comedy series, consists of 22 episodes and began airing on October 15, 2009, on the NBC network in the United States. The season was produced by Broadway Video, Little Stranger, and NBC Universal; the executive producers were series creator Tina Fey, Lorne Michaels, Marci Klein, David Miner, and Robert Carlock.
Document 15: Nancy Carell: Nancy Ellen Carell (née Walls; born July 19, 1966) is an American actress, comedian, and writer best known for her work on "Saturday Night Live", "The Daily Show", and "The Office". She is the wife of actor-comedian Steve Carell. The couple are creators of the TBS comedy series "Angie Tribeca".
ground_truth: "Saturday Night Live"