The Clock is a 30-minute American anthology television series based upon the American Broadcasting Company radio series, which ran from 1946–48. The half-hour series mostly consisted of original dramas concerning murder, mayhem or insanity. Series narrator was the only regular; each week a new set of guest stars were featured. The title of the series was derived from a clock which was a major plot element in each story. The show's musical theme was "The Sands of Time". Ninety-one episodes aired from 1949 to 1952, most of them on NBC, except for the final season which aired on ABC.