“There’s often the question, ‘Why would you do a third one?'” NCIS and NCIS: Los Angeles executive producer Shane Brennan admits of the franchise’s next spinoff, which will launch as a two-part “embedded pilot” on NCIS: LA March 19 and 26. “‘How would it be different?'”

Find out what’s Paris full name and who “Laverne and Shirley” are on tvguide.com.