(All times Eastern).
Last Man Standing (ABC at 8) Mandy asks Mike to make a speech at her business-school graduation, but it might not be as politically correct as her school hopes it will be.
The Vampire Diaries (CW at 8) Caroline and Stefan take drastic measures to protect Lizzie and Josie when the twins become the focus of the Siren’s plotting.
Hubble’s Amazing Journey (National Geographic Channel at 8) Nat Geo details the latest observations from the space telescope.
Dr. Ken (ABC at 8:30) Ken’s father decides to move in with his new girlfriend after he overhears Allison imply that he’s overstayed his welcome.
Crazy Ex-Girlfriend (CW at 9) Rebecca tries to host a girls’ night with Paula, Valencia and Heather, but her plans go awry.
Shark Tank (ABC at 9) The Sharks field pitches for an electric-skateboard business, a pet-food delivery service and a chewable caffeine supplement.
Z Nation (Syfy at 9) Warren leads an attack on Murphytown.
20/20 (ABC at 10) ABC News correspondent Matt Gutman talks to Keith Papini, whose wife, Sherri, was the victim of an apparent abduction last month.
Tony Roberts: Motorcity Motormouth (Showtime at 10) The comedian and Detroit native returns to his home town for a spirited stand-up special.
Comedy Bang! Bang! (IFC at 11) The oddball sketch comedy show, hosted by Scott Aukerman and “Weird Al” Yankovic, says farewell after five seasons with back-to-back episodes. Former co-host Reggie Watts and other fan favorites return.
My Life Is a Telenovela (WE at 11) The drama comes to a head in the Season 1 finale.
Chelsea (Netflix streaming) Dale Earnhardt Jr., Gaby Hoffman, Van Jones.
Fallon (NBC at 11:34) Chelsea Handler, John Legend, Chuck Leavell.
Colbert (CBS at 11:35) Matthew Broderick, Ali Wentworth, Fergie.