NBC began passing on pilots Wednesday afternoon but numerous series on the bubble will have to wait another day to learn their fate.

There was increasing chatter in the biz that NBC was preparing to do a house-cleaning of its comedy slate, with “Parks and Recreation” the only existing comedy sure of returning, probably for a final season. But the Peacock was also said to be considering shorter-than-13 episode orders for some returning series, something studios usually dislike because it requires renewed investment for an uncertain payoff.

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Among the shows on the razor’s edge are “The New Normal,” “Go On,” “Community,” “Guys with Kids” and “1600 Penn.”

Fox, meanwhile, was in the midst of making calls to producers Wednesday afternoon.

Among the pilots NBC has passed on are comedies ” Joe, Joe and Jane” and “Drop Off” and dramas “Holding Pattern,” “Bloodlines,” “Sixth Gun,” “Hatfields and the McCoys” and “The Secret Lives of Husbands and Wives.” It also passed on renewing short-lived drama “Deception.”

Hot properties at NBC include the Sean Hayes’ multi-camera comedy, Jason Katims’ half-hour take on “About a Boy,” Bill Lawrence’s “ .” Drama-wise, it’s looking good for “The Blacklist,’ “Ironside,” “Crisis” and John Stamos’ “I Am Victor.” Pilot pickup calls are expected to come on Friday.

Both NBC and Fox present their 2013-14 schedules to advertisers on Monday.