Sunday TV: 'Once Upon a Time,' 'The Simpsons'

Once Upon a Time | ABC, Sunday, 8 ET/PT

Surely the minute those Frozen box-office numbers started rolling in you knew its characters would find their way into Once — as what once seemed to be a clever reworking of old fairy tales continues to morph into a cross-marketing tool for Disney projects. Georgina Haig, Elizabeth Lail and Scott Michael Foster join the cast as Elsa, Anna and Kristoff for a story designed to serve as a sequel to a film that really didn't feel like it needed one. Which, of course, has never stopped Hollywood from making one.

The Simpsons | Fox, Sunday, 8 ET/PT

David Hyde Pierce (who will soon be back on TV in The Good Wife) and Sarah Silverman head up the guest voices on the season premiere of this long-running classic — which is about to become a bit less character-rich. Somebody dies Sunday, no telling who.

Brooklyn Nine-Nine | Fox, Sunday, 8:30 ET/PT

One of last season's best new series moves to Sunday with a typically funny episode that finds Jake returning to the squad after spending time on an undercover sting. It went well, but not well enough for Jake, who is an over-achiever – which is one of the wise twists this show, and star Andy Samberg, have put on a character you might have expected to be work-averse.