Lorenzo Elliott Semple III, known professionally as Lorenzo Semple Jr., was an American writer. He is best known for his work on the television series Batman, as well as political thriller films The Parallax View (1974) and Three Days of the Condor (1975).

Batman is an American live-action television series based on the DC Comics character of the same name. It stars Adam West as Bruce Wayne/Batman and Burt Ward as Dick Grayson/Robin—two crime-fighting heroes who defend Gotham City from a variety of archvillains. It is known for its camp style and upbeat theme music, as well as its intentionally humorous, simplistic morality aimed at its preteen audience. It was described by executive producer William Dozier at the time as "the only situation comedy on the air without a laugh track". The 120 episodes aired on the ABC network for three seasons from January 12, 1966, to March 14, 1968, twice weekly during the first two seasons, and weekly for the third. In 2016, television critics Alan Sepinwall and Matt Zoller Seitz ranked Batman as the 82nd greatest American television series of all time. A companion feature film was released in 1966 between the first and second seasons of the TV show.