Zachary Levi and Yvonne Strahovski

Chuck fans' consumption of all those Subway foot longs may pay off before NBC is slated to announce the rest of its fall season lineup.

A Season 3 pick-up could come as early as Sunday evening, as NBC and Warner Bros. attempt to hammer out the final details of a deal that would further whittle down Chuck's overhead, sources tell the Hollywood Reporter. Chuck's production bucks already had been trimmed some going into its sophomore run.

Even before spying the game-changing twist uncorked in the final moment of the Season 2 finale, Chuck fans had lobbied hard for a renewal by throwing their support to Subway, one of the series' cross-promotional partners.

Speaking with TVGuide.com earlier this month at NBC's "infront" presentation, network boss Ben Silverman deemed the Subway Save Chuck effort as no less than "amazing," while series creator Josh Schwartz assured us that the Peacock has "always loved" the action-comedy.

One factor perhaps playing in Chuck's favor was NBC's decision to take a pass on David E. Kelley's Legally Mad, thus incurring a financial penalty from Warner Bros. TV. One school of thought is that to "make good" on the amount due, NBC might renew Chuck, which is also a WB production.