Cold Case is an American police procedural television series which ran on CBS from September 28, 2003 to May 2, 2010. The series revolved around a fictionalized Philadelphia Police Department division that specializes in investigating cold cases.On May 18, 2010, CBS announced that the series had been canceled. The series aired in syndication, and also on Ion Television in the U.S. and on Viva in Canada. Sleuth also aired the series occasionally. In 2011, the show aired on MyNetworkTV.