The Bat-Signal seldom appeared in the 1960s TV series, Commissioner Gordon generally contacting Batman using a dedicated phone line (the Batphone). However, the Bat-Signal was occasionally used (for instance, in the episode "The Sandman Cometh" when Bruce Wayne and Dick Grayson are away on a camping trip), whenever Batman needed to be summoned from the field. Its first appearance was in the pilot episode, "Hi Diddle Riddle".