Over on cable, History has a Star Trek: Secrets of the Universe special, TLC has the fifth season finale of Hoarding: Buried Alive, and truTV has the second spring season premiere of South Beach Tow.
Arrow (The CW): Season Finale. Oliver and Diggle attempt to stop the Dark Archer from leveling the Glades. Thea gets herself in some trouble trying to find Roy.
Modern Family (ABC): New. Phil gets an RV to take a family trip. Jay and Gloria are on the hunt for Manny’s backpack. Runs 31 minutes.
Psych (USA Network): New. Shawn and Gus go undercover at a radio station in an attempt to figure out who murdered a DJ. Runs 61 minutes. Plays again later.
The Middle (ABC): New. Frankie gets special treatment after being mistaken for a doctor. Axl gets Sue to ditch school. Runs 30 minutes.
Criminal Minds (CBS): New. The team is tracking an unsub in Detroit. Blake’s husband makes her a life-changing proposition.
Nashville (ABC): New. Lamar turns out to be a great ally for Rayna. Jolene attempts to help Juliette. Will and Avery both get a shot to shine with bigger stars.
Flashpoint (ION): Six episodes tonight.
NCIS (USA Network): Nine episodes.
Sanford and Son (TV One): Has 12 episodes early.