While people wondered why the actor left, Harmon shared why he quit the show on the NCIS season 19 DVD. According to Entertainment Tonight, in an interview for the DVD feature, Harmon said that it ...

Harmon later became the "NCIS" lead, Special Agent Leroy Jethro Gibbs, before leaving the procedural on Season 19. Meanwhile ... but they're not compatible with DVD players used in the United ...