NCIS, formerly known as NCIS: Naval Criminal Investigative Service, is an American police procedural drama television series revolving around a fictional team of special agents from the Naval Criminal Investigative Service, which conducts criminal investigations involving the U.S. Navy and Marine Corps. The concept and characters were initially introduced in a two-part episode of the CBS series JAG . The show, a spin-off from JAG, premiered on September 23, 2003 on CBS and, to date, has aired nine full seasons and has gone into syndicated reruns on USA Network, Cloo , and Ion Television.... Donald Bellisario, who created JAG as well as the well-known series Airwolf, Magnum, P.I., and Quantum Leap, is co-creator and executive producer of NCIS. NCIS was originally referred to as Navy NCIS during season one; however, the word "Navy" was later dropped from the title as it was redundant. In season seven, NCIS was joined by a spin-off series, NCIS: Los Angeles, starring Chris O'Donnell and LL Cool J. In 2011, NCIS was voted as America’s favorite television show. On March 14, 2012, CBS renewed NCIS for a 10th season.
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| On the air: | September 23, 2003 |
| Number of seasons: | 9 |
| Network: | CBS |
| Producer: | Donald Bellisario, Shane Brennan |