RegularShowSay goodbye to Mordecai the blue jay and Rigby the raccoon as “Regular Show” (Cartoon Network, 6 p.m.) gets an hour-long episode, “A Regular Show Epic Final Battle” that will end the show’s run after eight seasons.

Martha MacCallum jumps the gun with her new show “The First 100 Days” (Fox News, 7 p.m.), taking the old Tucker Carlson time slot.

The new “Summer House” (Bravo, 10 p.m.) looks at nine privileged New Yorkers vacationing in Montauk, Long Island.

“The Story of God with Morgan Freeman” (National Geographic, 9 p.m.) begins a second season,.

“Timeless” (NBC, 10 p.m.) returns and goes immediately to see Houdini and the Chicago World’s Fair.

The surprise about this week’s “Big Fan” (ABC, 10 p.m.) is that Kim Kardashian has any fans in the first place. She’s followed by Kristen Bell.

Friday, he’ll be President; today, he’s executive producer of “Celebrity Apprentice” (NBC, 8 p.m.), where the competition concerns marketing Kawasaki motorcycles.

Two contestants on “America’s Next Top Model” (MTV, VH1, 10 p.m.) hook up.

The nightmare continues on “The Bachelor” (ABC, 8 p.m.), as the Backstreet Boys show up.

“Fast N’ Loud” (Discovery, 9 p.m.) begins its twelfth season.

The family drama from Down Under, “800 Words” (Acorn, streaming) begins its second season.

The “Howie Mandel All-Star Comedy Gala” (The CW, 8 p.m.) with J.B. Smoke, Jay Pharaoh, Iliza Schlesinger and Russell Brand, gets a rerun.

Turner Classic Movies marks Martin Luther King Day with three Civil Rights documentaries: The 1985 “You Got to Move – Stories of Change in the South” (8 p.m.), the 1994 “Freedom on My Mind” (10 p.m.) and the 1963 “Crisis” (midnight). Then comes two movies of black America, “One Potato, Two Potato” (1:15 a.m.) and “Guess Who’s Coming to Dinner” (3 a.m.) and a documentary on South Africa, “An American in Sophiatown” (5 a.m.).

NBA action today includes Atlanta at New York (NBA, 1 p.m.), Orlando at Denver (NBA, 5 p.m.), Cleveland at Golden State (TNT, 8 p.m.), and Oklahoma City at Clippers (TNT, 10:30 p.m.).

Hockey has Washington at Pittsburgh (NBC Sports, 7 p.m.).

Men’s college basketball includes Marquette at Butler (Fox Sports 1, noon), Creighton at Xavier (Fox Sports 1, 2 p.m.), Texas Arlington at South Alabama (ESPN2, 3 p.m.), DePaul at St. John’s (Fox Sports 1, 4:30 p.m.), Seton Hall at Villanova (Fox Sports 1, 6:30 p.m.), Boston University at Loyola (CBS Sports, 7 p.m.), Syracuse at North Carolina (ESPN, 7 p.m.), North Carolina Central at Hampton (ESPNU, 7 p.m.), Providence at Georgetown (Fox Sports 1, 9 p.m.), Kansas at Iowa State (ESPN, 9 p.m.) and Jackson State at Texas Southern (ESPNU, 9 p.m.).

Women’s games includes Notre Dame at Tennessee (ESPN2, 7 p.m.).

First round play begins in the Australia Open (ESPN2, 3 a.m. and 9 p.m.).

Daytime Talk

Kelly Ripa: Brendan Fraser, Lisa Rinna, Mark Consuls. The View: Van Jones, Arno Michaelis, Pradeep Singh Kaleka, Clay Aiken, Sunny Hostin. The Talk: Morgan Freeman, Kaitlin Olson. Harry Connick: Josh Holloway, Lisa Edelstein. Ellen DeGeneres: Nick Cannon, Chris Harrison, Rae Sremmurd. Wendy Williams: Nicole Lapin, Sharon Carpenter. The Real: Rev. Bernice King, Angela Rye.

Late Talk

Stephen Colbert: Sarah Paulson, Corey Stoll, Nick Grant with Watch the Duck. Jimmy Kimmel: Amy Adams, Naomie Harris, Blink 182 (rerun). Jimmy Fallon: Michael Stratan, Bryce Dallas Howard, Bebe Rexha. Seth Meyers: Jake Tapper, B.J. Novak, Steve Jones, Leah Shapiro. James Corden: Chris Tucker, Hailee Steinfeld, Shura (rerun). Carson Daly: Simone Biles, !!!, Kari Byron, Tory Belleci, Grant Imahara (rerun). Trevor Noah: David Fahrenthold, Bryshere Gray. Conan O’Brien: Fred Armisen, Van Jones, Drive-By Truckers.