South Park is an American adult animated sitcom created by Trey Parker and Matt Stone and developed by Brian Graden for the Comedy Central television network. The show revolves around four boys—Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick—and their bizarre adventures in and around the titular Colorado town. Much like The Simpsons, South Park uses a very large ensemble cast of recurring characters and became infamous for its profanity and dark, surreal humour that satirises a wide range of topics towards a mature audience. Parker and Stone developed the show from The Spirit of Christmas, two consecutive animated shorts created in 1992 and 1995. The latter became one of the first Internet viral videos, ultimately leading to South Park's production. It debuted in August 1997 with great success, consistently earning the highest ratings of any basic cable program. Subsequent ratings have varied but it remains one of Comedy Central's highest rated shows, and is slated to air in new episodes through 2019.