Question: Which series aired first, Auction Kings or Pawn Stars?

Context paragraphs:
Chumlee: Austin Lee Russell (born September 8, 1982), better known by his stage name of Chumlee, is an American actor, businessman and reality television personality, known as a cast member on the History Channel television show "Pawn Stars", which depicts the daily business at the Gold and Silver Pawn Shop in Las Vegas where Russell works as an employee.  Chumlee came to work at the pawn shop five years before filming of the first season, having been a childhood friend of Corey Harrison, whose father, Rick Harrison, and grandfather, Richard Benjamin Harrison, opened the shop in 1989.

Counting Cars: Counting Cars is an American reality television series, shown on History, and produced by Leftfield Pictures.  The series, which is the third spinoff of "Pawn Stars", is filmed in Las Vegas, Nevada, where it chronicles the daily activities at Count's Kustoms, an automobile restoration and customization company owned and operated by Danny Koker, who previously appeared as a recurring expert on "Pawn Stars".  In a format similar to another "Pawn Stars" spinoff, "American Restoration", the series follows Koker and his staff as they restore and modify classic automobiles and motorcycles.  "Counting Cars" debuted on August 13, 2012.

Pawn Stars Australia: Pawn Stars Australia is the Australian adaption of the American series of the same name.  It premiered on 21 July 2015 on A&E.  The Australian version is the third international spin-off after Pawn Stars UK and Pawn Stars South Africa.

Shirley's World: Shirley's World is a television series aired first by American Broadcasting Company during the U.S. 1971-72 television season.  The sitcom was co-produced by the British ITC Entertainment and American producer Sheldon Leonard; it starred Shirley MacLaine as a photojournalist and John Gregson as her editor at "World Illustrated" magazine.

Richard Benjamin Harrison: Richard Benjamin Harrison Jr., (also known by the nicknames The Old Man and The Appraiser) (born March 4, 1941), is a Las Vegas businessman and reality television personality, best known as the co-owner of the World Famous Gold & Silver Pawn Shop, as featured on the History channel series "Pawn Stars".  Harrison was the co-owner of a pawn shop with his son Rick Harrison until he suffered a stroke, causing him to retire.They opened the store together in 1989.

Pawn Stars: Pawn Stars is an American reality television series, shown on History, and produced by Leftfield Pictures.  The series is filmed in Las Vegas, Nevada, where it chronicles the daily activities at the World Famous Gold & Silver Pawn Shop, a 24-hour family business opened in 1989 and operated by patriarch Richard "Old Man" Harrison, his son Rick Harrison, Rick's son Corey "Big Hoss" Harrison, and Corey's childhood friend, Austin "Chumlee" Russell.  The series, which became the network's highest rated show and the No. 2 reality show behind "Jersey Shore", debuted on July 26, 2009.

Pawn Stars UK: Pawn Stars UK is a British reality television series which debuted on 26 August 2013 on the British version of the History channel.  The series is filmed in Sealand, Flintshire in Wales, and chronicles the day-to-day activities of pawn shop Regal Pawn, collaboratively run by Mark Andrew Manning, Mark Lever Holland, Marco Peter Holland, Simon Penworth, and Vicki Manning.

Rick Harrison: Richard Kevin "Rick the Spotter" Harrison (born March 22, 1965) is an American, Las Vegas-based businessman and reality television personality, best known as the co-owner of the World Famous Gold & Silver Pawn Shop, as featured on the History series "Pawn Stars".  He co-owns the pawn shop with his father, Richard Benjamin Harrison, which they opened in 1989.  Harrison dropped out of high school to pursue his "$2,000-a-week business of selling fake Gucci bags".

Auction Kings: Auction Kings is a reality television series produced by Authentic Entertainment for the Discovery Channel.  The series premiered on October 26, 2010 and featured the now defunct auction house Gallery 63 in Sandy Springs, Georgia, located on Roswell Road immediately north of the Atlanta city limit.  The series capitalized on the success of the History Channel's widely successful "Pawn Stars".  The auction house employees often rely on experts to appraise items of which historical background is provided to the viewer.  Sellers offer comments regarding the merchandise at hand both before and after the auction.  At the second commercial break, a multiple-choice question about the auction house or the items is presented.

Pawnography: Pawnography is an American game show broadcast by History.  Hosted by comedian Christopher Titus and featuring "Pawn Stars" personalities Rick Harrison, Corey Harrison and Austin "Chumlee" Russell as panelists, the series features contestants answering questions for a chance to win cash and items for sale from the Gold and Silver Pawn Shop (where "Pawn Stars" is taped).  The show premiered July 10, 2014, at 10 p.m. ET, following "Pawn Stars".

Supporting paragraphs: Auction Kings Pawn Stars
Answer: Pawn Stars