They crowned a new Masked Singer last week (Amber Riley beat Wilson Phillips) in their eighth season finale; tonight they bring everyone back for the “Masked Singer Seasonal Sing-A-Long Spectacular” (Fox, 8 p.m.).

“The Conners” (ABC, 8 p.m.), “The Goldbergs” (ABC, 8:30 p.m.) and “Home Economics” (ABC, 9:30 a.m.) all have Christmas episodes.

Ethan and April plan their wedding on “Chicago Med” (NBC, 8 p.m.); a familiar face makes a surprising return on “Chicago Fire” (NBC, 9 p.m.); and “Chicago P.D.” (NBC, 10 p.m.) closes in on a suspect. 

“The Real Housewives of Salt Lake City” (Bravo, 8 p.m.) toss some designer shoes overboard.

A groom goes missing on wedding day on “Big Sky” (ABC, 10 p.m.). 

“Moonshiners” (Discovery, 8 p.m.) are confronted by a detective.

The Assessment finally comes on “Reginald the Vampire” (Syfy, 10 p.m.). 

“Shaq” (HBO, 9 p.m.) has a change of fortune after the Lakers’ three-peat.

Arrests are made on the third episode of “Unveiled: Surviving La Luz Del Mundo” (HBO, 10 p.m.). 

Neighbors and temptation are the themes on Turner Classic Movies with “Good Neighbor Sam” (8 p.m.), “The Seven Year Itch” (10:30 p.m.), “The Courtship of Eddie’s Father” (12:30 a.m.), “In the Mood for Love” (2:45 a.m.) and “It’s a Great Feeling” (4:30 a.m.). 

During the day are stories of the Pacific theatre of World War II with “Hell to Eternity” (6:15 a.m.), “Air Force” (8:30 p.m.), “Thirty Seconds Over Tokyo” (11 a.m.), “They Were Expendable” (1:30 p.m.), “Bridge to the Sun” (4 p.m.) and “Swing Shift” (6:15 p.m.).

Basketball includes Atlanta at Hawks (ESPN, 7:45 p.m.) and Boston at Phoenix (ESPN, 10 p.m.).

Hockey has Buffalo at Columbus (TNT, 7:30 p.m.) and Rangers at Vegas (TNT, 10 p.m.).

Men’s college hoops include DePaul at St. John’s (Fox Sports 1, 6:30 p.m.), Navy at West Virginia (ESPNU, 7 p.m.), Manhattan at Providence (Fox Sports 1, 8:30 p.m.), UConn at Florida (ESPN2, 9 p.m.) and Arizona State at SMU (ESPNU, 9 p.m.). 

Women’s Games include  Iowa State at Iowa (ESPN2, 7 p.m.). 

Daytime Talk

Kelly Ripa and Ryan Seacrest: Emma Thompson, Zoey Deutch. The View: Mike Birbiglia. The Talk: Lisa Ann Walter, Teddy Swims. Drew Barrymore: Mindy Kaling. Kelly Clarkson: Zoey Deutch, Mike Rowe, Jeannie Mai. Jennifer Hudson: Don Cheadle, Adrienne Ballon-Houghton. Tamron Hall: Angie Martinez, Naturi Naughton. 

Late Talk

Stephen Colbert: Mariah Carey, Kumail Nanjiani. Jimmy Kimmel: Will Ferrell, Machine Gun Kelly, the Linda Lindas. Jimmy Fallon: Michelle Pfeiffer, Lil Rel Howery, Clive Davis. Seth Meyers: Josh Lucas, Kerry Condon, Jordan Jensen. Trevor Noah: Roger Federer.