Apple TV is developing a "Silo" spinoff tied to Hugh Howey's upcoming Silo book trilogy, according to Apple TV commentator and podcaster Sigmund Judge. He said pre-production will begin later this year, with the books expected next summer. Hiring has apparently begun and some sets remain standing after season four wrapped in March. The reported project would follow the show's fourth and final season.Related Roundup: Apple TVTag: Apple TV ShowsBuyer's Guide: Apple TV (Buy Now)Related Forum: Apple TV and Home TheaterThis article, "Apple TV Reportedly Planning 'Silo' Spinoff" first appeared on MacRumors.comDiscuss this article in our forums