“Secrets of the Celtic Grave” (Science, 8 p.m.) is a two-hour special about the finding of a grave that might be thousands of years old. On “Dexter” (Showtime, 9 p.m.), a local discovers the secret identity of Jim Lindsay.
Tariq’s client referrals raise questions on “Power Book II: Ghost” (Starz, 8 p.m.).
The nature series “The Mating Game” (Discovery +, streaming) concludes with a look at reproduction traits of the fan-tailed anglerfish and cicadas.
“America’s Funniest Home Videos” (ABC, 7 p.m.) has a Christmas edition.
Tracy and Mae decide to disappear for a while on “Condor” (Epix, 9 p.m.).
“Small Town Christmas” (UPtv, 9 p.m.) focuses on Bethlehem — Pennsylvania, that is.
Mattel and Nintendo are explored on “The Toys That Built America” (History, 10 p.m.).
“Mr. A & Mr. M: The Story of A&M Records” (Epix, 10 p.m.) concludes with its second episode about the label founded by Herb Alpert and Jerry Moss.
Say goodbye to “Squidbillies” (Cartoon Network, midnight), which presents the final two episodes of its 13 seasons.
James Pickens Jr., Brooke Burns and Johnny Weir play “Celebrity Wheel of Fortune” (ABC, 8 p.m.).
A couple of early films by Francis Ford Coppola are on Turner Classic Movies tonight, “Finian’s Rainbow” (8 p.m.) and “You’re a Big Boy Now” (10:30 p.m.). After midnight is Greta Garbo in the silent “The Mysterious Lady” (12:45 p.m.), then two from director Nagisa Oshima, “Merry Christmas, Mr. Lawrence” (2:30 a.m.) and “Street of Love and Hope” (4:45 a.m.).
Men’s college basketball includes Colgate at St. John’s (Fox Sports 1, noon), Florida State vs. South Carolina (ESPN2, noon), Virginia Tech at Dayton (ESPN2, 2 p.m.), Villanova at Baylor (ABC, 3 p.m.), Kent State at West Virginia (ESPN2, 4 p.m.), NJIT at Northwestern (ESPNU, 4 p.m.), and Rutgers at Seton Hall (Fox Sports 1, 7:30 p.m.).
Women’s games include Kentucky at Louisville (ESPN, 1 p.m.) and Maryland at South Carolina (ESPN, 3 p.m.).
Final rounds are played in the QBE Shootout (Golf, noon; NBC, 2 p.m.).
The Abu Dhabi Grand Prix (ESPN2, 8 a.m.) is run.
Canadian football has Winnipeg at Hamilton (ESPN2, 6 p.m.) in the Grey Cup.
In Men’s soccer, it’s Washington vs. Clemson (ESPNU, 2 p.m.) in the NCAA College Cup final.
Sunday Talk
ABC: Anthony Fauci. CBS: New Hampshire Gov. Chris Sununu, New Jersey Gov. Phil Murphy, foreign affairs specialist Fiona Hill, former FDA commissioner Scott Gottlieb. NBC: Secretary of State Antony Blinken, Kentucky Gov. Andy Beshear, Sen. Roger Marshall. CNN: New York City Mayor Bill de Blasio, Arkansas Gov. Asa Hutchinson, Sen. Amy Klubuchar. Fox News: De Blasio, Sen. Lindsey Graham.