Two years after losing star Steve Carell and on the heels of longtime writer-actors B.J. Novak and Mindy Kaling departing as well, EP Greg Daniels broke the somewhat expected news in August: "If we didn't let it end this year, I don't know if we would have been able to tell the endings for so many characters that I really want to know the endings for."
Still on the table: a potential spinoff centered on Rainn Wilson's Dwight.
'30 Rock' (2006-2013)
The Office isn't the only iconic NBC comedy hitting the road this year. After seven seasons that saw Tina Fey become a household name and revive Alec Baldwin as a king of comedy, the low-rated but critically adored 30 Rock says goodbye after 13 episodes.
Fringe boss J.H. Wyman knows how the show will end when it takes its final bow in February, but he's still working out how to get there. “The show has a natural ending," he recently said. "It’s something that we know is right. How that takes shape is always in flux."
'Gossip Girl' (2007-2013)
What is The CW without its landmark series? It's about to find out, when the antics of the Upper East Siders leave the network's lineup for good this season. Just 10 episodes of Gossip Girl remain when the soap returns for its sixth and final season this fall.
'Jersey Shore' (2009-2012)
Cramming six seasons into three short years, MTV's most-watched series of all time makes its final pilgrimage to Seaside Heights this fall. Snooki and JWoww, at least, will continue to school the network's audiences on the "guido" lifestyle with their recently renewed spinoff.
An unconventional run for sure, Starz's Spartacus saw the series retooled when Liam McIntyre took over the titular role from late lead Andy Whitfield in 2012. McIntyre saw the story was about to reach its climax before creator Steven S. DeKnight even let him in on the news: "You could sort of tell from the scripts that they were going to wind things up, but in a pretty amazing way by the way things looked in episodes two and three."
One of the longest running comedies in cable history, the end is near for Weeds -- and it's been approved by its lead. "I think the finale is beautifully written," said Mary-Louise Parker of the now-wrapped series. "I cried when I read it."
'The Big C' (2010-2013)
Laura Linney's cancer comedy gets an unconventional sendoff in 2013. The fourth season of the Showtime series will consist of four hourlong episodes.
'Private Practice' (2007-2012)
ABC's Grey's Anatomy spinoff Private Practice will come to an end with a 13-episode sixth season. "There was a lot of discussion and debate but, in the end, the guys at the network and the studio and I all decided that Private Practice was reaching its finish line," Rhimes wrote. "Creatively, we are all extremely proud of the show and especially proud of this season -- which you will all soon discover is a creative renaissance. I can't wait for you to see it."