LOS ANGELES (thefutoncritic.com) -- On the heels of announcing its 2010-11 season finale dates (read the story), we've managed to snag a few exclusive details about NBC's plans for the May sweeps period and beyond.

Here's a breakdown of the latest developments:

-- "Parks & Recreation" will air back-to-back episodes on Thursday, May 12 (at 9:30/8:30c and 10:00/9:00c) in addition to its special one-hour season finale on May 19 at 10:00/9:00c.

-- "30 Rock" will now produce 23 half-hours this season as a result of its one-hour 100th episode on Thursday, April 21 at 10:00/9:00c.

-- "Harry's Law" will wrap its season after 12 episodes on Monday, April 4 at 10:00/9:00c as its original pilot, featuring Ben Chaplin, counts against the show's 13-episode commitment.

-- And finally, "Law & Order: Los Angeles" will continue with original episodes through June 27. The show's April 11 return will jump ahead to the revamped incarnation (featuring Alfred Molina and Corey Stoll as the cops, Terrence Howard and Alana de la Garza as the lawyers) before circling back to the pre-reboot version (featuring Skeet Ulrich and Corey Stoll as the cops; and the Terrence Howard/Megan Boone and Alfred Molina/Regina Hall teams as the lawyers) in the summer.