Peacock sets unscripted UFO series with Demi Lovato, grows doc slate NBCUniversal’s Peacock is growing its unscripted lineup with a number of feature films, a true crime docuseries and an unscripted series starring Demi Lovato. The streaming service is getting into the UFO business with ... May 11, 2021 NBCUniversal’s Peacock is growing its unscripted lineup with a number of feature films, a true crime docuseries and an unscripted series starring Demi Lovato. The streaming service is getting into the UFO business with the four-part limited series Unidentified with Demi Lovato (w/t), which finds the multi-hyphenate singer, actress, activist, producer and bestselling author (pictured) star and executive produce.