What to Watch Sunday: Good Wife 100, Treme's Final Bow, Walking Dead's Fall Finale and More

The Decision TreeOn TV this Sunday: The Good Wife hits 100 with a bang, The Walking Dead lurches into winter hibernation, Treme kicks off its final season, PBS shares a peek inside the Abbey and more. As a supplement to TVLine’s original features (linked within), here are 10 programs to keep on your radar.

PREVIEW | Once Upon a Time Creators Tease Adoption Flashback Twists, Warn of Peter Pan’s Resilience

8 pm The Christmas Spirit (Hallmark Channel) | The spirit of a comatose journalist (Nicolette Sheridan, Desperate Housewives) tries to stop a real-estate developer from changing her town.

RELATED | Homeland‘s Damian Lewis is TVLine’s Performer of the Week

9 pm Homeland (Showtime) | Brody embarks on his dangerous mission to Iran, while Quinn makes an uncomfortable discovery in DC.

9 pm Treme (HBO) | Season 4 premiere: New Orleans celebrates Obama’s election as this Big Easy-set drama begins its final, five-episode run.

9 pm Christmas in Conway (ABC) | In this Hallmark Hall of Fame telepic, Andy Garcia (Ocean’s Eleven) plays a man who endeavors to erect a Ferris wheel in his back yard for his ailing wife (Weeds‘ Mary-Louise Parker) — only to meet opposition from an irascible neighbor (SNL‘s Cheri Oteri). Mandy Moore (Entourage) and Riley Smith (90210) also star.The Walking Dead

9 pm The Walking Dead (AMC) | Fall finale: Rick and the group face imminent danger just as things begin to calm at the prison. (You just know a few of the living aren’t going to make it to the second half of this season.)

9 pm Return to Downton Abbey (PBS) | Susan Sarandon (The Big C) hosts this look back at the first three seasons and shares a sneak peek at Season 4 (premiering Stateside on Jan. 5).

9:30 pm The Good Wife (CBS) | When Alicia’s former client Matthew Ashbaugh (Fringe‘s John Noble) bequeaths her millions, LG contests the will on behalf of the deceased’s wife — setting the stage for a nasty, and personal, courtroom battle. (Get more scoop, see photos.)

PREVIEW | The Mentalist 2.0: 10 Things to Know About Señor Jane, Chief Lisbon and Life ‘In the Future’

10 pm Masters of Sex (Showtime) | Hospital staff conflicts escalate during a nationwide civil defense drill.

10 pm Getting On (HBO) | A new supervising nurse (Mel Rodriguez, Community) has some ideas to improve the ward’s ratings.

10:30 pm Ja’mie: Private School Girl (HBO) | Ja’mie competes with her rival, Erin, and performs a private dance for her love interest, Mitchell.

Hit the comments with your must-see picks from tonight’s line-up!