'NCIS:' The 1 Reason Mark Harmon Prefers Working on the Show to a Movie Career - The Cheat Sheet

'NCIS:' The 1 Reason Mark Harmon Prefers Working on the Show to a Movie Career  The Cheat Sheet'NCIS' star Mark Harmon quickly found success after he started acting career, but there is one reason he turned his back on movies to focus on TV instead.