The X-Factor (8pm, Fox) - Season 2 begins with new judges Britney Spears and Demi Lovato joining Simon Cowell and L.A. Reid for an evening of auditions.
Ghost Hunters (9pm, Syfy) - The TAPS crew investigate a camp in Georgia and a haunted home in Marion, N.C.
Royal Pains (9pm, USA) - Boris calls on Hank again to travel the globe to help Dmitry. Meanwhile, Hank and Harper grow closer and Paige continues to navigate the fallout from the revelation of a family secret.
Guys with Kids (10pm, NBC) - A new comedy about three dads in their thirties opens with Chris needing to find a babysitter so he can attend a basketball game without his ex-wife finding out.
Top Chef Masters (10pm, Bravo) - The chefs participate in an underground dining event by creating an epic picnic-style meal.
Family Guns (10pm, National Geographic Channel) - A new reality series documenting the daily life at New Jersey's International Military Antiques, a family-run supplier of military collectibles. In tonight's opener, IMA manager clashes with his father over what to do with their most valuable pieces. Elsewhere, staffers risk their jobs by making unauthorized purchases of two rare, mint-conditioned World War II sniper rifles.