What To Watch: Last Serving Of Leftovers, Once Fall Finale, Sinatra Honored, Shadowhunters And More

On TV this Sunday: HBO packs up its Leftovers, Once Upon a Time goes to the dark side, Ol' Blue Eyes is remembered and ABC Family unleashes its Shadowhunters a little early. Here are 10 programs to keep on your radar.

Showtimes for December 6, 2015

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K.C. Undercover

Disney Channel

K.C. surprises her dad, Craig, with a visit from his dad, Earl… but Earl is still disappointed in Craig's decision not to go to med school. (Watch a sneak peek.)

The Librarians

TNT

When people suffer the effects of sins that are not their own, the team ties the mystery to Dorian Gray, whose ageless magic now works on — wait for it — selfies.

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Once Upon a Time

ABC

Fall finale: As their Storybrooke siege gets underway, the Dark Ones target a soul for sacrifice. (Delayed by Obama speech; read Colin O’Donoghue Q&A.)

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Brooklyn Nine-Nine

Fox

For an international case, Jake and Rosa must team with a pair of Swedish cops (played by Mindy Project’s Anders Holm and Another Period’s Riki Lindhome). (Delayed by Obama speech; watch a sneak peek.)

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The Leftovers

HBO

Season finale, 75 minutes: Kevin comes clean to a skeptical John about his connection to Evie’s disappearance as Miracle faces an unexpected threat on the fourth anniversary of The Departure. (Not yet renewed — and in danger.)

Sinatra 100 — An All-Star Grammy Concert

CBS

On what would have been his 100th birthday, the legend is honored by Tony Bennett, Celine Dion, Adam Levine, Carrie Underwood, Sam Smith and others.

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Shadowhunters: Beyond the Shadows

ABC Family

Ahead of its Jan. 12 debut, ABC Family (soon to be Freeform) goes behind the scenes of the fantasy series based on Cassandra Clare’s Mortal Instruments novels. (Watch the latest trailer.)

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The Affair

Showtime

After the events of the hurricane, Noah grapples with essential questions and Alison begins to have doubts. (Who merited a Performer of the Week mention?)

Into the Badlands

AMC

While Quinn sets a dangerous parlay, Sunny and M.K. try to figure out how to control the boy's power.

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Quantico

ABC

Alex works covertly with her team to find the real bomber; at Quantico, a disciplinary hearing causes deep secrets to be spilled. (Delayed by Obama speech.)

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