How ‘Law & Order: SVU,’ ‘NCIS’ and ‘Grey’s Anatomy’ Have Kept Fans Hooked By May 14, 2024Art Shows like “Law & Order: SVU,” “NCIS” and “Grey’s Anatomy” have kept fans hooked for 20 seasons or more. How do they do it? Shows like “Law & Order: SVU,” “NCIS” and “Grey’s Anatomy” have kept fans hooked for 20 seasons or more. How do they do it?