The Office (US) debuted on ABC only.
The Office is an American television comedy series that aired on NBC from March 24 , 2005 to May 16 , 2013 . The show debuted on NBC as a mid-season replacement and ran for nine seasons and 201 episodes . The Office is a British mockumentary sitcom , first broadcast in the United Kingdom on BBC Two on 9 July 2001 . When it was first shown on BBC Two , it was nearly cancelled due to low ratings , but it has since become one of the most successful of all British comedy exports . The show began airing in The United States on Cartoon Network 's late night programing block , Adult Swim on 18 September 2009 until 2012 .