those_who_cant-640x345The second in the number of cable comedies about the life of not the best teachers, originating from a regional improv comedy troupe, is the crude and largely unfunny “Those Who Can’t” (truTV, 10:30 p.m.) featuring members of the Denver-based Grawlix troupe, Adam Cayton-Holland, Andrew Orvedahl and Ben Roy, as well as Maria Thayer.

The disappointing show of inept teachers still promises a number of guest stars, including Sarah Michelle Gellar, T.J. Miller, Michael Madsen, Peter Stormare and Mary Lynn Rajskub. The other cable newbie, which started a few weeks ago, “Teachers,” on TV Land, is from a Chicago-based group of women called the Katydids.

Here’s something different: Yet another Democratic Presidential Debate (PBS, CNN, 9 p.m.). What’s different this time? Gwen Ifill and Judy Woodruff moderate and because it is public television, there will be no commercial breaks (or the kind of instant mid-debate analysis ABC likes to throw in). It will be on CNN only because that news network is licensing it from public broadcasting (and will likely get a nice tote bag as a premium for its hefty fee).

“Scandal” (ABC, 9 p.m.) has been off TV for a while, but not the six months since the breakup of Olivia and Fitz, but that’s where the series picks up.

Also back: “Grey’s Anatomy” (ABC, 8 p.m.), in an episode where Meredith is brutally attacked; and “How to Get Away with Murder” (ABC, 10 p.m.), which also lets some time pass since last year’s midseason finale.

The second half of the Top 24 perform on “American Idol” (Fox, 8 p.m.) and the judges vote on who will continue

A new season begins for “Project Runway All Stars” (Lifetime, 9 p.m.).

It’s Eastertime in Bakersfield on a new “Baskets” (FX, 10 p.m.).

It’s Eva Longoria vs. Hayden Panetierre on a new “Lip Synch Battle” (Spike, 10 p.m.).

Members of the cast of “The Walking Dead” stagger “Inside the Actors Studio” (Bravo, 8 p.m.).

The second half of “Restaurant Wars” winds up on “Top Chef” (Bravo, 9 p.m.).

Joe Manganiello guest stars as a new guy at AA on “Mom” (CBS, 9 p.m.).

A tattoo artist makes a spelling error on “Life in Pieces” (CBS, 8:30 p.m.).

“Big Bang Theory” (CBS, 8 p.m.) has its own Valentine’s Day episode.

Geronimo’s identity is revealed on “Colony” (USA, 10 p.m.).

A pot party is planned on “Workaholics” (Comedy Central, 10 p.m.).

Danny finds some evidence he’s overlooked on “London Spy” (BBC America, 10 p.m.).

There’s an East Coast-West Coast rivalry on “Recipe for Deception” (Bravo, 10 p.m.).

Turner Classic Movies’ 31 Days of Oscars swings back to the 1930s and 40s with “Imitation of Life” (8 p.m.), “The Gold Diggers of 1933” (10 p.m.), “Top Hat” (11:45 p.m.), “The Moon and Sixpence” (1:30 a.m.), “The Son of Monte Cristo” (3:15 a.m.) and “The Man in the Iron Mask” (5 a.m.).

NBA action includes New Orleans at Oklahoma City (TNT, 8 p.m.).

Men’s college hoops includes St. Francis at Robert Morris (ESPNU, 5 p.m.), Florida State at Syracuse (ESPN, 7 p.m.), Connecticut at Temple (ESPN2, 7 p.m.), VCU at Massachusetts (ESPNU, 7 p.m.), Eastern Kentucky at Morehead State (CBS Sports, 7 p.m.), Redford at UNC Asheville (ESPNU, 9 p.m.), Oregon at California (ESPN2, 9 p.m.), Illinois State at Evansville (CBS Sports, 9 p.m.), Gonzaga at Portland (ESPNU, 11 p.m.) and Oregon State at Stanford (Fox Sports 1, 11 p.m.).

Daytime Talk

Kelly & Michael: Penelope Cruz, Bobby Cannavale, Maddie & Tae. The View: Samantha Bee. The Talk: Courtney B. Vance, Piers Morgan, Chi-Lan Lieu. Ellen DeGeneres: Scott Foley, Elle King. Wendy Williams: Brian Balthazar, Alfred Enoch. The Real: Tank. Meredith Vieira: Tiffani Thiessen.

Late Talk

Stephen Colbert: Fred Armisen, Sarah McDaniel, Ty Segall and the Muggers. Jimmy Kimmel: Owen Wilson, Khloe Kardashian, Alessia Cara. Jimmy Fallon: Kristen Wiig, Bob Odenkirk, Elle King. Seth Meyers: Susan Sarandon, Alison Brie, Katie Nolan, Jaleel Bunton. James Corden: Chiwetel Ejiofor, Grace Helbig, Jake Lacy, Albert Hammond Jr. Carson Daly: Mark McKinney, Houndmouth, Rob Kazinsky. Tavis Smiley: Carlos Santana. Trevor Noah: Ben Stiller. Larry Wilmore: Alexis Ohanian. Conan O’Brien: Carl Reiner, Jacob Tremblay, Emily King.