The Alfred Hitchcock Hour was a mystery and suspense anthology hosted by the master of supsense Alfred Hitchcock. Each 60 minute episode included opening and closing vingettes featuring Hitchcock who would often explain some aspect of the day's show and would often offer subtle (or not so subtle) jabs at the shows sponsors. The series premiered on CBS on Thursday, September 20, 1962 in the 10:00-11:00 PM timeslot opposite ABC's Alcoa Premiere and NBC's The Andy Williams Show. In its third season the show moved to NBC and was shown on Monday 10:00 to 11:00 PM. On NBC it was broadcast opposite ABC's Ben Casey and CBS's Slattery's People. The Alfred Hitchcock Hour featured both original works produced directly for television and adaptations of existing source material. Some authors whose work was adapted for the series include: Cornell Woolrich, Ellery Queen, H.G. Wells, Henry Slesar, John Wyndham, William Link, Ray Bradbury, and Robert Bloch. The show also featured work b