[["Because after 18 seasons and extra episodes, he was ready to quit the character and the story. You cannot do a television show forever. ", 1039.0], ["Mark Harmon's contract for the 19th season called for his role to be \"limited.\" He remains as a producer and the showrunner indicates no one should count him out - he's just retired.", 566.0]]
why did mark harmon leave n. c. i. s.
film and tv