TV HIGHLIGHTS
SERIES
The Big Bang Theory June Squibb (“Nebraska”) guest stars as Sheldon’s (Jim Parsons) often-mentioned but previously unseen “Meemaw,” whose visit thrills her grandson — until she meets Amy (Mayim Bialik) in this new episode of the smart comedy. 8 p.m. CBS
You, Me and the Apocalypse Global riots break out as the comet draws nearer, so all eyes are on Scotty McNeil (Kyle Soller) and his plan to save the world in this new episode. 8 p.m. NBC
DC’s Legends of Tomorrow
In this new episode Rip (Arthur Darville) hatches a scheme to weaken Vandal Savage (Casper Crump) by going after his financial assets. 8 p.m. KTLA
Madoff The two-part miniseries starring Richard Dreyfus and Blythe Danner concludes. 8 p.m. ABC. The documentary special “Madoff: After the Fall” follows at 10.
American Idol The top 24 are revealed in this new episode. 8 p.m. Fox
Mom Determined to avoid her needy ex-boyfriend, Steve (Don McManus), Bonnie (Allison Janney) drags Christie (Anna Faris) to a new 12-step group, where she runs into an old friend (Rosie O’Donnell). 9 p.m. CBS
The Blacklist Red and Liz (James Spader, Megan Boone) work with the FBI task force to prevent an alliance between rival crime families in this new episode. Tony Shalhoub and Margarita Levieva guest star. 9 p.m. NBC
Project Runway: Junior
The unscripted fashion competition ends its season. Hannah Davis hosts. 9 p.m. Lifetime
Angel From Hell Amy (Jane Lynch) is determined to get Allison (Maggie Lawson) to stop caring about “looking stupid.” 9:30 p.m. CBS
Elementary After a bomb goes off in the New York city morgue, Holmes and Watson (Jonny Lee Miller, Lucy Liu) search for a killer without any physical evidence. 10 p.m. CBS
Shades of Blue Harlee and Tess (Jennifer Lopez, Drea de Matteo) intercept a shipment of heroin from a local drug dealer in this new episode. 10 p.m. NBC
London Spy During a brutal investigation, D.I. Taylor (Samantha Spiro) accuses Danny (Ben Whishaw) of accidentally causing Alex’s (Edward Holcroft) death. 10 p.m. BBC America
Lip Sync Battle Nina Dobrev competes against Tim Tebow in this new episode.10 p.m. Spike
Colony Will (Josh Holloway) earns the respect of his colleagues, while a Resistance attack brings the Bowman family together. 10 p.m. USA
SPECIALS
Democratic Candidates
Debate Hillary Clinton and Sen. Bernie Sanders (I-Vt.) discuss the issues in New Hampshire. 6 and 9 p.m. MSNBC
MOVIES
High Noon (1952) 8 a.m.
EPIX
Cinderella (2015) 11:55 a.m. and 9 p.m. Starz
TALK SHOWS
CBS This Morning Stephen Colbert. (N) 7 a.m. KCBS
Today Rachel Hunter; chef Annabel Langbein. (N) 7 a.m. KNBC
Good Morning America
“Hail, Caesar!” cast. (N) 7 a.m. KABC
Good Day L.A. Ally Brooke and Ismael Torres. (N) 7 a.m. KTTV
Live With Kelly and Michael Dakota Johnson. (N) 9 a.m. KABC
The View Dr. Phil McGraw; Liz Garbus and Lisa Simone Kelly. (N) 10 a.m. KABC
The Meredith Vieira Show
Blythe Danner (“Madoff ”). (N) 11 a.m. KNBC
The Doctors A man who overdosed on diet pills. (N) 11 a.m. KCAL
The Talk Tyrese Gibson; Louis Aguirre. (N) 1 p.m. KCBS
The Dr. Oz Show JamieLynn Sigler discusses her multiple sclerosis. (N) 2 p.m. KTTV
Dr. Phil An imprisoned woman whose new husband fell to his death. (N) 3 p.m. KCBS
The Real Janet Hubert. (N) 3 p.m. KTTV
The Ellen DeGeneres Show
George Clooney. (N) 4 p.m. KNBC
To the Contrary With Bonnie Erbé Swanee Hunt. (N) 5:30 p.m. KOCE
Tavis Smiley Mike Binder; Kareem Abdul-Jabbar. (N) 11 p.m. KOCE
Charlie Rose (N) 11 p.m. KVCR; 11:30 p.m. KOCE
The Daily Show With Trevor Noah Lilly Singh. (N) 11 p.m. Comedy Central
Conan Alden Ehrenreich; Andrew Bird. (N) 11 p.m. TBS
The Nightly Show Paul F. Tompkins. (N) 11:30 p.m. Comedy Central
The Tonight Show: Jimmy
Fallon Jonah Hill; Megyn Kelly; Wiz Khalifa performs. (N) 11:34 p.m. KNBC
Late Show: Stephen Colbert Michael Strahan; Samantha Bee; Wilco performs. (N) 11:35 p.m. KCBS
Jimmy Kimmel Live Jason Sudeikis; Lionel Richie, 2016 MusiCares Person of the Year; Elton John performs. (N) 11:35 p.m. KABC
The Late Late Show: James
Corden Eva Longoria; Tom Ellis; 5 Seconds of Summer. (N) 12:37 a.m. KCBS
Late Night: Seth Meyers
L.A. Reid; JoJo performs; Russell Simins and the 8G Band. (N) 12:37 a.m. KNBC
SPORTS
For today’s sports on TV, see the Sports section.