The long-running police procedural will end after 20 seasons.
May 14, 2010
NBC has announced that the original Law & Order series will end its run after 20 seasons. The show will air its last episode on Monday, May 24, 2010.
Spinoffs Law & Order: SVU and Law & Order: Criminal Intent will continue to air, as well as the newest spinoff, Law & Order: Los Angeles.
(Source: TV by the Numbers)