Treehouse of Horror

TV

Halloween, virtual reality and a milestone: On Sunday, Oct. 16, at 8 p.m. ET/PT on FOX, “The Simpsons” will give audiences a special viewing experience. Television’s longest-running comedy series and longest-running scripted show in history will air the all-new “Treehouse of Horror XXVII,” its annual Halloween episode, which will double as the show’s 600th episode.