Improvised sitcoms are a recent television phenomenon in which there is no definite script for the actors and actresses. Rather, the actors/actresses use the process of retroscripting in which there are rough outlines of themes and stories, but the dialogue is up for the actors/actresses to improvise. Because of the improvised fashion, these sitcoms are usually shot by handheld camera in a documentary-type style. Usually these shows have no laugh tracks, predetermined entrances, or punchlines. Such improvised sitcoms include Curb Your Enthusiasm.
This innovative method of television production has largely been welcomed by the established academies of the medium. Examples would include Emmy and Golden Globe nominations for a show and the actors involved; as well as strong support from publications and critics.