Desc: 2020 Hallmark Movies & Mysteries Preview Special: Directed by Leon Knoles. With Trevor Donovan, Danica McKellar, Victor Webster. A sneak peek at the upcoming 2020 Hallmark Movies and Mysteries channel Christmas movies. The preview is Co-hosted by Jen Lilley and Trevor Donovan. Jen Liley and Trevor Donovan also star in Hallmark Movies and Mysteries channel Christmas movie USS Christmas.