The 400th episode of “Dancing with the Stars” (ABC, 8 p.m.) is also the 24th season start for the competition that this time features Mr. T, Charo, Chris Kattan, Olympian Simone Biles and the guy you thought you were rid of last week, “Bachelor” Nick Viall.
Speaking of which, two of the worst contestants on “The Bachelor” have been tapped for their own reality series, Haley and Emily Ferguson in “The Twins: Happily Ever After” (Freeform, 9 p.m.).
Three even lesser known people are followed in the new reality series “Sweet Home Oklahoma” (Bravo, 10 p.m.), about three blonde divorcees who consider themselves more glam than their conservative surroundings.
Three students look at their year at an at-risk school in California’s Mojave Desert in “The Bad Kids,” a documentary by Keith Fulton and Lou Pepe on “Independent Lens” (PBS, 10 p.m., check local listings).
The seven-episode second season of “Humans” (AMC, 10 p.m.) ends, with the synths’ plans revealed.
Money’s effect is explored on “Origins: The Journey of Humankind” (National Geographic, 9 p.m.).
As battle rounds begin, “The Voice” (NBC, 8 p.m.) brings in this season’s mentors: Celine Dion, John Legend, DJ Khaled and Luke Bryan.
“Jane the Virgin” (The CW, 9 p.m.) runs for room mother.
Teri Hatcher plays a new villain on “Supergirl” (The CW, 8 p.m.).
Crimes committed in the name of love is the theme of the new true-crime series “For My Woman” (TV One, 10 p.m.).
Adam accompanies his dad on a doctor’s visit on “Man with a Plan” (CBS, 8:30 p.m.).
The team looks for Carter on “24: Legacy” (Fox, 8 p.m.).
Singer and Yellow Ranger Becky G. helps judge a Power Rangers competition on “Cake Wars” (Food, 8 p.m.).
On “Kevin Can Wait” (CBS, 9 p.m.), Kevin and Donna look for new couples friends.
Kirk cheats on Rasheeda on “Love & Hip Hop Atlanta” (VH1, 8 p.m.).
Valentine’s is celebrated more than a month late on “Young & Hungry” (Freeform, 8 p.m.).
Gideon is a target of murderers on “APB” (Fox, 9 p.m.).
Ben questions whether Tucker is dating a hooker on “Baby Daddy” (Freeform, 8:30 p.m.).
It’s Stevie J vs. Karlie Redd on “Hip Hop Squares” (VH1, 9 p.m.).
Franco is hurt at work on “Superior Donuts” (CBS, 9 p.m.).
“Teen Mom 2” (MTV, 9 p.m.) throws a reunion.
“Booze Traveler” (Travel, 10 p.m.) goes to Siberia.
On “Scorpion” (CBS, 10 p.m.) repairing a turbine at a wind farm goes wrong.
The President assembles an illegal task force on “Quantico” (ABC, 10 p.m.).
Rhianna begins her run as Marion Crane on “Bates Motel” (A&E, 10 p.m.), inspired, of course by the original “Psycho” (TCM, 8 p.m.), which kicks off something it’s calling March Malice, highlighting villainy, starting with psycho killers, in that film and “Peeping Tom” (10 p.m.). Also: con men in “The Night of the Hunter” (midnight) and “A Face in the Crowd” (1:45 a.m.) and high-tech killers in the original “Westworld” (4 a.m.) and “2001: A Space Odyssey” (5:30 a.m.).
NBA action includes Golden State at Oklahoma City (TNT, 8 p.m.) and Knicks at Clippers (TNT, 10:30 p.m.).
Hockey has Buffalo at Detroit (NBC Sports, 7:30 p.m.).
In second round NIT play, it’s Central Florida at Illinois State (ESPN, 7 p.m.), Akron at UT Arlington (ESPNU, 8 p.m.), Boise State at Illinois (ESPN, 9 p.m.) and Bakersfield at Colorado State (ESPN2, 11:15 p.m.).
In second round play in the the NCAA Women’s Basketball Tournament, it’s UConn vs. Syracuse (ESPN2, 6:30 p.m.) and other games; Washington vs. Oklahoma (ESPN2, 9 p.m.) and UCLA vs. Texas A&M (ESPNU, 10 p.m.).
And it’s Netherlands vs. Puerto Rico (MLB, 9 p.m.) in a World Baseball Classic semifinal.
Kelly Ripa: Jennifer Lopez, John Lithgow, Jeffrey Dean Morgan. The View: Sanaa Lathan, Mack Wilds. The Talk: Terrence Howard, Tracey Edmonds. Harry Connick: Gillian Jacobs, Veronica “Pooh” Nash-oleate, Danica McKellar. Ellen DeGeneres: Jane Fonda, Asia Kate Dillon. Wendy Williams: Nicole Lapin, Josh McBride. The Real: Cornelius Smith Jr.
Stephen Colbert: Bryan Cranston, Audra McDonald, Greer Barnes. Jimmy Kimmel: Adam Carolla, Yara Shahid, Ice-T, T.I. Jimmy Fallon: Jake Gyllenhaal, Paris Jackson, Julia Michaels. Seth Meyers: Will Forte, Jay Bilas, Chris Hayes, Charlie Benante. James Corden: Abigail Spencer, Ben Platt, Tim Minchin, Take That. Carson Daly: Jay Chandrasekhar, the Frights, Randy Liedtke. Trevor Noah: Bassem Youssef, Omarosa Manigault. Conan O’Brien: Jeff Garlin, Adam Pally.