Medium is an American supernatural and dramatic television series that premiered on NBC on January 3, 2005. Its focus is Allison DuBois (Patricia Arquette), a medium who works as a consultant for the Phoenix, Arizona district attorney's office. The lead character is a wife to loving husband, Joe, and the mother of three daughters who all inherited her gift, apparently passed from generation to generation. The original premise of the show was based on reported experiences of self-proclaimed medium Allison DuBois, who claims to have worked with law enforcement agencies across the country in criminal investigations.Medium was created by Glenn Gordon Caron and is produced by Picturemaker Productions and Grammnet Productions in association with CBS Television Studios, originally known as Paramount Television and CBS Paramount Television.The series aired on NBC during its first five seasons before switching to CBS, whose production division produces the show,[1] beginning with the sixth season. It was announced on May 18th, 2010 that Medium has been renewed through the 2010-2011 season, for a 7th season.