This is an episode list for the original 1974-1975 television series Kolchak: The Night Stalker, produced by Universal Television for the ABC Television Network. Through 1972 & 73, ABC had produced and aired two made-for-TV movies, which became the de facto pilots for the subsequent series. The original movie, based on an unpublished novel, entitled simply The Night Stalker would spawn a direct sequel in the form of an episode of the series: The Vampire. The second movie, The Night Strangler, however, was an entirely original story. The first episode of the series, The Ripper, is sometimes mistaken as the pilot of the series and shares a number of plot similarities with the 2nd movie.