question:  Mary Tyler Moore: The 20th Anniversary Show commemorated the 20th anniversary of a sitcom created by what two people?
answer: James L. Brooks and Allan Burns
context: Title: CMLL 65th Anniversary Show
  Passage: The CMLL 65th Anniversary Show was a professional wrestling major show event produced by Consejo Mundial de Lucha Libre (CMLL) in 1998.  Different sources identify different shows in September as the actual Anniversary Show, either on September 11 or September 18, or possibly both as CMLL has held multiple shows to commemorate their anniversary in the past.  Both shows took place in Arena Mexico in Mexico City, Mexico.  The September 11th show consisted of five matches in total, with one of the featured bouts being a Best two-out-of-three falls "Lucha de Apuesta" mask vs. mask match between Último Guerrero and Mr. Águila, the first "Luchas de Apuestas" match of Último Guerrero's career.  The September 18th show consisted of five matches, with the main event being a Six-man tag team match between the teams of "Los Capos" (Cien Caras and Máscara Año 2000) and Emilio Charles Jr. taking on three representatives of CMLL's main "rúd" (bad guy) group "Los Boriquas", Kevin Quinn, El Boricua and Miguel Perez Jr. The semi-main event was a "Lucha de Apuestas", hair vs. hair match between Ricky Santana and Apolo Dantés.  In addition the show also featured an additional six-man tag match, an eight-man "Atomicos" match and a tag team match.  One or both of the evets commemorated the 65th anniversary of CMLL, the oldest professional wrestling promotion.  in the world.  The Anniversary show is CMLL's biggest show of the year, their Super Bowl event.
  Title: EMLL 15th Anniversary Show
  Passage: Mexican professional wrestling promotion Empresa Mexicana de Lucha Libre (EMLL) commemorated their 15th anniversary with two "'EMLL 15th Anniversary Shows".  The first Anniversary show was held on September 22, 1948 in Arena Coliseo in Mexico City, Mexico, EMLL's main venue.  The second event took place two days later on September 24, 1948 in Arena Modelo.  The events commemorated the 15th anniversary of EMLL, which would later become the oldest professional wrestling promotion in the world.  The Anniversary show is EMLL's biggest show of the year, their Super Bowl event.  The first anniversary show featured the EMLL debut of Blue Demon, who would later become one of the iconic figures of Mexican wrestling.
  Title: Mary Tyler Moore: The 20th Anniversary Show
  Passage: Mary Tyler Moore: The 20th Anniversary Show is a 1991 American television special commemorating the 20th anniversary of the 1970–77 sitcom "The Mary Tyler Moore Show" which was broadcast on CBS on February 18, 1991.
  Title: CMLL 74th Anniversary Show
  Passage: The CMLL 74th Anniversary Show was a professional wrestling major show event produced by Consejo Mundial de Lucha Libre (CMLL) that took place on September 28, 2007 in Arena México, Mexico City, Mexico.  The show consisted of six matches, with the main event being an "Infierno en el Ring" (Spanish for "Hell in the ring") Steel cage match, contested under "Lucha de Apuestas" rules, which mean the last man in the cage would be forced to unmask.  The participants risking their mask were: Atlantis, Blue Panther, Lizmark Jr., Místico, Perro Aguayo Jr., Dr. Wagner Jr., Último Guerrero and Villano V.  The event also featured five Six-man tag team matches, including an all-female match.  The event commemorated the 74th anniversary of CMLL, the oldest professional wrestling promotion.  in the world.  The anniversary show is CMLL's biggest show of the year, their Super Bowl event.  The 74th anniversary show was transmitted live on Pay-Per-View, something only a few anniversary shows before this one had been.
  Title: EMLL 20th Anniversary Show
  Passage: The EMLL 20th Anniversary Show was a professional wrestling major show event produced by Empresa Mexicana de Lucha Libre (EMLL) that took place on September 25, 1953 in Arena Coliseo, Mexico City, Mexico.  The event commemorated the 20th anniversary of EMLL, which would become the oldest professional wrestling promotion in the world.  The Anniversary show is EMLL's biggest show of the year, their Super Bowl event.
  Title: EMLL 55th Anniversary Show
  Passage: The EMLL 55th Anniversary Show was a professional wrestling major show event produced by Empresa Mexicana de Lucha Libre (EMLL) that took place on September 30, 1988 in Arena Mexico, Mexico City, Mexico.  The event commemorated the 55th anniversary of CMLL, which would become the oldest professional wrestling promotion in the world.  The Anniversary show is EMLL's biggest show of the year, their Super Bowl event.  The main event of the show was a "Lucha de Apuestas" ("Bet match) where both Máscara Año 2000 and Mogur wagered their masks on the outcome of the match, with the loser being forced to take off his mask at the end of the show.  Mogur had unmasked As Charro at the previous year's anniversary show and put his mask on the line once again.  The show also featured a match for the NWA World Light Heavyweight Championship and a match for the Mexican National Welterweight Championship as well as an undetermined number of other matches.
  Title: The Mary Tyler Moore Show
  Passage: The Mary Tyler Moore Show, originally known simply by the name of the show's star, Mary Tyler Moore, is an American sitcom created by James L. Brooks and Allan Burns that aired on CBS from 1970 to 1977.  The program featured American television's first never-married, independent career woman as the central character.
citations: The Mary Tyler Moore Show Mary Tyler Moore: The 20th Anniversary Show