The Librarians (8 p.m., TNT) – In the Season 2 finale, the librarians discover that Prospero’s magic is wreaking havoc with the technology of the world.
Also on . . .
NC Bookwatch (Noon, UNC-TV) – Scott Syfert talks about his book “The First American Declaration of Independence.”
Agent X (9 p.m., TNT) – The show ends its first season with two back-to-back episodes. First, John is blackmailed by a terrorist into going on a suicide mission. At 10, John must rescue Natalie, Eckhart and a delegation of international leaders from a hostage crisis in a Paris opera house.
Cupcake Wars: Kids (9 p.m., Food) – The premiere of a new series about junior bakers. In the premiere, four kids aged 9-14 battle for the chance to take their cupcake displays to a massive party celebrating Scooby Doo.
Finding Bigfoot: Further Evidence (9 p.m., Animal Planet) – Apparently, there’s more evidence. The team decides to divide and conquer when this new evidence brings them back to Alaska.