Medium is an American television supernatural drama series that originally aired on NBC for five seasons from January 3, 2005 to June 1, 2009, and on CBS for two more seasons from September 25, 2009 to January 21, 2011.
The series stars Patricia Arquette as Allison DuBois, a medium employed as a consultant for the Phoenix, Arizona district attorney's office. Allison and her husband Joe (Jake Weber) are the parents of three daughters (Sofia Vassilieva, Maria Lark, and Madison and Miranda Carabello), all of whom inherited Allison's gift. The show was initially based on the experiences of medium Allison DuBois, who claims she has worked with law enforcement agencies across the country in criminal investigations.
Medium was created by Glenn Gordon Caron and was produced by his company Picturemaker Productions and Kelsey Grammer's Grammnet Productions in association with Paramount Network Television from 2005 to 2006, CBS Paramount Network Television from 2006 to 2009 (after the split of Viacom and CBS Corporation), and finally CBS Television Studios from 2009 until the series ended.
The production division of CBS had assumed production of Medium in 2006 after absorbing the television arm of the Paramount Pictures film studio. Paramount's home entertainment arm still held DVD distribution rights in conjunction with CBS DVD. On December 21, 2010, CBS announced that the show had been canceled after seven seasons. The series finale aired on January 21, 2011, exactly a month later.