Dirk Gently's Holistic Detective Agency Todd (Elijah Wood) finds himself dragged further (and against his will) into Dirk’s (Samuel Barnett) case as they learn more about who kidnapped Patrick Spring’s daughter (Alison Thornton). Hannah Marks, Richard Schiff and Jade Eshete also star. 9 p.m. BBC America
The Graham Norton Show Tom Cruise, Cobie Smulders, Jude Law and Catherine Tate are guests, and rock band Kings of Leon performs. 10 p.m. BBC America
The Real Amish Witches The Amish witches that inspired the film, “Amish Witches: The...