What To Watch: Madam Secretary's 100th, Sally4Ever Finale And More

On TV this Sunday: Madam Secretary marks a milestone, Sally4Ever wraps its freshman run and Fox revisits The Simpsons' 1989 debut. Here are 13 programs to keep on your radar; all times are Eastern:

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Showtimes for December 23, 2018

ET

Laverne & Shirley Marathon

MeTV

Through 6 pm | The basic cabler pays tribute to the late Penny Marshall with Laverne-centric episodes of the classic sitcom. (View lineup.)

ET

Ice Age: Mammoth Christmas

Fox

In this 2011 cartoon, Sid, Crash, Eddie and Peaches head to the North Pole so Sid can convince Santa that he doesn't belong on the naughty list.

ET

Christmas Made to Order

Hallmark Channel

TV-movie premiere: An architect (Mean Girls' Jonathan Bennett) hires a holiday coordinator (Spy Kids' Alexa PenaVega) to help plan a family Christmas gathering.

Disney’s Prep and Landing

ABC

In this 2009 'toon, an elite, high-tech unit of Elves ensure that homes around the world are prepared for a visit from Saint Nick. (Prep & Landing 2 follows at 8:30 pm.)

The Simpsons

Fox

Repeat to Revisit: The first-ever episode, which aired on this day in 1989, finds Homer trying to earn some extra money for Christmas gifts.

ET

Madam Secretary

CBS

Episode No. 100 (Part 1 of 2): Elizabeth clashes with a U.S. governor over the state's family separation policy. (Part 2 airs Sunday, Jan. 6.)

ET

Berlin Station

Epix

Torres takes a major risk to bring a fallen comrade back to Berlin; April discovers the full value of her asset's medical tech.

Queen America

Facebook Watch

The team begins to worry about Samantha's chances in the pageant following her first review board interview.

Ray Donovan

Showtime

Ray tries to salvage Novak's campaign save Mac's life; Bridget discovers some uncomfortable truths about her father. (Psst… hear the good news?)

The Year: 2018

ABC

120 minutes: Robin Roberts' annual special chronicles the most notable events in news and pop culture from the last 12 months. 

ET

Dirty John

Bravo

John gets clean for Debra and puts his sister through the wringer.

Escape at Dannemora

Showtime

The penultimate hour reveals what Matt and Sweat are truly capable of outside the prison's walls. (Who was Performer of the Week?)

ET

Sally4Ever

HBO

Season 1 finale (40 minutes): Emma's romantic getaway does not go as planned; Sally meets actor Sean Bean.

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