Mystery! (also written MYSTERY!) is an episodic television series that debuted in 1980 in the USA. It airs on PBS and is produced by WGBH. The show has brought a large number of detective series and television movies—most of them British productions from the BBC or the ITV companies and usually adapted from mystery fiction literary sources—to air on American television. In 2002, they added an American-produced series based on the novels of Tony Hillerman to their roster.