Saturday Night Live is an American late-night live television sketch comedy and variety show created by Lorne Michaels and developed by Dick Ebersol. It premiered on NBC on October 11, 1975. The show's comedy sketches, which parody contemporary culture and politics, are performed by a large and varying cast of repertory and newer cast members. Each episode is hosted by a celebrity guest (who usually delivers an opening monologue and performs in sketches with the cast) and features performances by a musical guest.