For the first time, CBS will air a special three-hour crossover event between NCIS, NCIS ... and writing and producing teams who bring these shows to life. They came up with a thrilling story ...

But this is the CBS military crime series “NCIS,” created by veteran TV producer Don Bellisario, who’s known for bringing a cutting-edge look to his shows. “NCIS” (8 p.m. ET Tuesdays ...

The popularity of these shows bears out this wisdom. Television has been in a near constant state of volatility and change in the two decades since “NCIS” premiered, in September 2003 ...