What to Watch on Sunday: Having faith in Hallmark Hall of Fame

Once Upon a Time (8pm, ABC) - Henry puts himself in danger when he explores a sinkhole he hopes will lead to the fairy tale world, and Jiminy Cricket wants to leave the family business.

Being Chaz (8pm, OWN) - A show following Chaz Bono and his fiance as they navigate their lives together after Chaz's gender-transformation surgery, and as he begins to train for "Dancing with the Stars."

Mitch Albom's Have a Little Faith (9pm, ABC) - Hallmark Hall of Fame presents an adaptation of Mitch Albom's non-fiction book about his life-altering bonds with two religious leaders: one his childhood rabbi (Martin Landau) in New Jersey, the other an African-Amercian Detroit preacher (Laurence Fishburne). He met both men while writing a column on homelessness. Bradley Whitford also stars. (Reminder: Albom is the guy who thinks North Carolinians are all hillbillies. I'll pass.)

The Walking Dead (9pm, AMC) - Tonight's episode is the show's mid-season finale, which means this is the last new episode we'll get till February. And it's a doozy. All secrets are now out in the open, which makes life on the farm pretty tense. I can't say too much without giving away plot details, but I'll say this much: this is an absolutely incredible episode. It's intense and dramatic, and there's a pretty shocking -- and emotional -- ending. DO. NOT. MISS.

2011 Soul Train Awards (9pm, BET) - Cedric the Entertainer hosts the 24th annual gala. Earth, Wind and Fire and Gladys Knight are this year's Legend Award winners.

Real Deal (9pm, History) - Two back-to-back new episodes of a new series about people selling valuable items. Raleigh's Jason McCoon is one of the show's regular featured auctioneers.

Homeland (10pm, Showtime) - Brody's efforts to sever ties with Abu Nazir triggers flashbacks to his time as a captive. Meanwhile, the mosque shooting results in a public-relations nightmare for Carrie.