NGTV Guide: Tuesday, April 17

Glee – 8/7c FOX
“Saturday Night Glee-ver” – The New Directions pay homage to the movie “Saturday Night Fever” by grooving to disco-infused dance numbers.

Cougar Town – 8:30/7:30 ABC
“Ways to Be Wicked” – No one believes Ellie when she claims her seemingly pleasant mother (Susan Blakely) is a sociopath; Grayson tries to help Laurie open a cake business; Chick and Bobby help Travis and his friends with their plot to steal the campus cougar statue.

Ringer – 9/8c the CW
“I’m the Good Twin” – As the vow renewal nears, Bridgetrealizes she first needs to tell Andrew the truth about who she really is. Meanwhile, just as Bodaway Macawi starts to close in on Bridget, Agent Machado is forced off the case and Henry decides whether he should tell Bridget the truth about Siobhan.

New Girl – 9/8c FOX
“Kids” – Jess babysits Russell’s pre-teen daughter for the weekend and meets his ex-wife (guest star Jeanne Tripplehorn). Then, Schmidt and Cece panic when they think she’s pregnant. Also, Nick’s new girlfriend may be too young and Winston discovers his new boss is a big baby.

Raising Hope – 9:30/8:30c FOX – SEASON FINALE
“I Want My Baby Back, Baby Back, Baby Back” – Following the revelations of the “Inside Probe” expose of their family history, the Chances are put on trial in a fight to retain custody of Hope.

Unforgettable – 10/9c CBS
“Endgame” – When Walter Morgan turns up dead, Carrie must locate his killer while deflecting attention from the prime suspect – her.