NBC to pull plug on ‘ER’ on March 12

updated 8:39 p.m. ET Dec. 3, 2008

NEW YORK - NBC says "ER" will treat its last patients during a two-hour series finale set to air March 12.

A week after that medical drama ends its 15-season run, NBC will introduce "Kings," an ambitious new series set in the present but based on the Biblical tale of David and Goliath. It stars Ian McShane ("Deadwood") as the powerful monarch of mythical Gilboa.

A four-hour thriller starring Val Kilmer ("The Doors") and Stephen Dorff ("World Trade Center"), "XIII" will air Feb. 8 and 15.

And the new season of "Celebrity Apprentice" will begin March 1, NBC says.

But there's no news yet on a premiere date for the as-yet-untitled comedy starring "Saturday Night Live" alum Amy Poehler, which NBC is still promising for later this season.