ER - The Complete First Season is a four-disc DVD set that includes the first season of the medical drama series. This drama series features George Clooney and Sherry Stringfield in the lead roles and is set in the emergency room of a Chicago hospital. The show is rated NR and is intended for mature audiences. The DVD set is formatted for DVD players and was released in 2003. This DVD set is a great addition to any fan's collection.