kentuckyBrackets ready? March Madness begins in earnest with a slew of games over 12 hours.

First is Rhode Island vs. Oklahoma (CBS, noon), followed by Tennessee vs. Wright State (truTV, 12:30 p.m.), Gonzaga vs. UNC Greensboro (TNT, 1:20 p.m.), Kansas vs. Pennsylvania (TBS, 1:50 p.m.), Duke vs. Iona (tbs, 2:30 p.m.), Miami vs. Loyola Chicago (truTV, 3 p.m.), Ohio State vs. South Dakota State (TNT, 3:50 p.m.), Seton Hall vs. North Carolina State (TBS, 4:20 p.m.), Villanova vs. Radford (TNT, 6:45 p.m.), Kentucky vs. Davidson (CBS, 7 p.m.), Texas Tech vs. Alabama (TNT, 9:15 p.m.), Arizona vs. Buffalo (CBS, 9:30 p.m.), Michigan vs. Montana (TBS, 9:45 p.m.) and Florida vs. St. Bonaventure (truTV, 9:55 p.m.).

A shocking arrest is promised after last week’s accident on the fourth season finale of “How to Get Away with Murder” (ABC, 10 p.m.).

A finale comes, too, on “RuPaul’s Drag Race All Stars” (VH1, 8 p.m.).

Earn has a hard time spending a $100 bill on “Atlanta” (FX, 10 p.m.).

On the new “Tabula Rasa” (Netflix, streaming), a woman with amnesia tries to prove her innocence.

And the kids’ show “Stretch Armstrong: The Breakout” (Netflix, streaming) is an experiment in choosing one’s own path through the story.

MTV is very excited about bringing back Snooki, the Situation and the rest in a new series, so, following a day-long marathon of “Jersey Shore” (MTV, 10 a.m.), which went off they air in 2012, there is a countdown of its hookups on on a new special that shares a title with the revival, “Jersey Shore Family Vacation” (MTV, 10 p.m.). The actual series, which has already been picked up for a second season, actually begins April 5.

“Tough Mudder: Tougher Together” (The CW, 8 p.m.) is not an Olympic sport; it’s an muddy obstacle course.

“Project Runway All Stars” (Lifetime, 9 p.m.) design rock star costumes.

Ivy picks her next target on “Gotham” (Fox, 9 p.m.).

On “Grey’s Anatomy” (ABC, 8 p.m.), Jo applies for fellowships.

Cyrus basks in glory after Air Force Two’s safe landing on “Scandal” (ABC, 9 p.m.).

A bakery refuses to make a cake for Karen on “Will & Grace” (NBC, 9 p.m.).

On “A.P. Bio” (NBC, 8:30 p.m.), Jack is attracted to a student’s mother at a parent-teacher conference.

“Superstore” (NBC, 8 p.m.) gives amnesty to its employees for past mistakes.

Participants are yanks from the program on “60 Days In” (A&E, 10 p.m.).

Michael adjusts to his new situation on “Champions” (NBC, 9:30 p.m.).

“Flip or Flop Vegas” (HGTV, 9 p.m.) returns for a second season.

On “Beyond” (Freeform, 8 p.m.), Willa and Luke face Yellow Jacket.

Turner Classic Movies’ Liztravaganza continues with Elizabeth Taylor on “Butterfield 8” (8 p.m.), “The Sandpiper” (10 p.m.), “The Taming of the Shrew” (12:15 a.m.), “Doctor Faustus” (2:30 a.m.) and “X Y & Zee” (4:30 a.m.).

NCAA championships are also going on in wrestling (ESPNU, noon; ESPN, 7 p.m.).

In pro basketball, it’s Clippers at Houston (NBA, 8 p.m.).

Hockey had Pittsburgh at Montreal (NBC Sports, 7:30 p.m.) and Detroit at Los Angeles (NBC, 10 p.m.).

Spring baseball includes Miami at Mets (MLB, 1 p.m.), Kansas City at Dodgers (MLB, 4 p.m.) and Seattle at Oakland (MLB, 10 p.m.).

Daytime Talk

Kelly Ripa and Ryan Seacrest: Connie Britton, Brian Tyree Henry. The View: Ricky Gervais. Harry Connick: Iyanla Vanzant. Steve Harvey: Darren Criss, Lori Laughlin, Tia Mowry. Ellen DeGeneres: Kendall Jenner, Becca Kuprin, Portugal the Man. Wendy Williams: Carson Kressley, Chef Nikki Dinki, Jerry O’Connell. The Real: Craig Robinson.

Late Talk

Stephen Colbert: John Oliver, Beanie Feldstein, Wolfgang Puck (rerun). Jimmy Kimmel: Zach Braff, Borns. Jimmy Fallon: Bill Hader, Jimmy Buffett, Troye Sivan. Seth Meyers: John Cleese, Laverne Cox, Joelle Nicole Johnson, Brendan Canty. James Corden: Alicia Vikander, Walton Goggins, James Blunt. Carson Daly: Padma Lakshmi, Creeper, Max Winkler. Trevor Noah: Christiane Amanpour. Jordan Klepper: Andrew Marantz. Conan O’Brien: Anderson Cooper, Selma Blair, Grizzly Bear.