“America's Got Talent Holiday Spectacular" (NBC at 8) Heidi Klum and Season 11 finalist Sal Valentinetti sing a duet in this two-hour special, featuring performances from other fan favorites including Jackie Evancho and Grace VanderWaal. (Vivian Zink/NBC)

(All times Eastern)

Antiques Roadshow (WETA at 8) The show looks back on treasured appraisals from the past 20 years.

Man With a Plan (CBS at 9) Adam does his best to guide his eldest daughter through a momentous occasion.

2 Broke Girls (CBS at 9:30) Han and Caroline help Max try to get Randy back. This involves a road trip to Los Angeles.

StarTalk (National Geographic Channel at 11) Neil deGrasse Tyson interviews William Shatner.

Premiere

The Wall (NBC at 10) Pairs compete to win more than $12 million in cash prizes in this game show, produced by LeBron James and hosted by the ubiquitous Chris Hardwick. This is a sneak preview — the official premiere is slated for Jan. 3.

Specials

First Lady Michelle Obama Says Farewell to The White House: An Oprah Winfrey Special (CBS at 8) In an interview taped at The White House, Michelle Obama reflects on the past eight years, her legacy as first lady and her plans for the future.

Christmas With the Mormon Tabernacle Choir (WETA at 9) Broadway star Laura Osnes and British actor Marvin Jarvis perform with the famed ensemble at Salt Lake City’s Temple Square.

Marie Claire Young Women’s Honors (CW at 9) Gina Rodriguez (“Jane the Virgin”) hosts this one-hour ceremony honoring gymnast Simone Biles and other influential women.

Finale

The Great Christmas Light Fight (ABC at 8) Families from across the country present their festive holiday light displays for the chance to win $50,000 and the Christmas Light trophy in the final two episodes of this annual competition show.

Late Night

Conan (TBS at 11) Edward Norton, Alan Tudyk, The Revivalists.

Fallon (NBC at 11:34) Denzel Washington, Tony Bennett.

Colbert (CBS at 11:35) Tom Hanks, OK Go.

Meyers (NBC at 12:37) Sarah Paulson, Taran Killam, Marc Andreyko, Tori Kelly.

Bethonie Butler