ER

ER is an American medical drama television series created by novelist and physician Michael Crichton that aired on NBC from September 19, 1994, to April 2, 2009, with a total of 331 episodes spanning 15 seasons. It was produced by Constant C Productions and Amblin Television, in association with Warner Bros. Television. ER follows the inner life of the emergency room (ER) of Cook County General Hospital (a fictionalized version of the real Cook County Hospital) in Chicago, and various critical issues faced by the department's physicians and staff.