Over on cable, IFC has the series premiere of Maron and Syfy has the fifth spring season premiere of Merlin.
Happy Endings (ABC): New. Dave and Penny have a weird reaction to their parents deciding to adopt a baby.
Happy Endings (ABC): Season Finale. Jane is planning a wedding for her older sister. Dave and Alex are keeping a big secret.
Da Vinci’s Demons (Starz): New. Leonardo shows off his latest weapon, as the armies of Rome and Florence face off. Plays twice.
Blue Bloods (CBS): New. Danny deals with the suicide of a woman he promised to help. The Reagan family deals with a loss.
Cold Case (ION): Has 11 episodes.
CSI: Crime Scene Investigation (USA Network): Five episodes today.
Good Times (TV One): Has 14 episodes early.
Law & Order: Special Victims Unit (USA Network): Seven episodes tonight.
The Mentalist (TNT): Eight episodes.
Merlin (Syfy): Has 12 episodes today.