“NCIS” (“JAG”)
“NCIS” is that show your parents have been tuning into religiously every Tuesday night for the last 15 years, probably because it’s incredibly formulaic and easily digestible, and that Mark Harmon is just so darn dreamy. But it actually came from “JAG,” another long-running formulaic Navy show, starring another mom-approved dream boat named David James Elliott. Really, it’s moms who are keeping CBS afloat.