Pretty Little Liars (8pm, ABC Family) - Caleb and Toby work together to investigate "A" and the incident involving the lodge fire. Meanwhile, Hanna tries to pretend she's fine, but her pals worry about her.
So You Think You Can Dance (8pm, Fox) - The Top 16 dancers perform and two are eliminated. Carly Rae Jepsen is a guest judge.
Nine for IX: No Limits (8pm, ESPN) - The tragic story of free-diver Audrey Mestre, who was drawn to diving as a therapeutic outlet from scoliosis and later immersed herself in the sport through a relationship with Cuban defector Pipin Ferreras. Directed by Alison Elwood.
Rizzoli & Isles (9pm, TNT) - Paddy's murder trial begins, and Hope opens up about Maura's father. Also, Korsak sheds light on Cavanaugh's tragic past, and Maura unearths a stunning secret.
Drunk History (10pm, Comedy Central) - Funniest show on TV right now. Tonight, we get the drunk narratives of the invention of Coca-Cola, the FBI's investigation of Martin Luther King, Jr. and an author's infiltration of the KKK.
Suits (10pm, USA) - Louis has an offer for Mike that could affect his future at the firm, and Harvey and Jessica take on an old foe, who throws a wrench into their defense of Ava Hessington.
Secrets of the Dead: Bones of the Buddha (10pm, UNC-TV) - Historian Charles Allen attempts to verify or dismiss an 1898 find in northern India that many experts have long deemed a hoax: Buddha's bones and ashes. The remains were discovered in an inscribed reliquary jar found buried inside a stone coffer that was found while excavating a hill.