Here are the top 5 highest-rated TV shows of 2015, as compiled by Nielsen: In fifth place was Empire, the popular series led by Taraji P. Henson and Terrence Howard which debuted in January. In fourth place was NCIS: New Orleans, followed by investigative news journal 60 Minutes, then The Big Bang Theory: the family-friendly sitcom about a group of nerdy scientists. And topping all others was NCIS, in which Mark Harmon and special agents solve crimes related to the Navy and Marine Corps.

Nielsen’s Highest Rated TV Shows Of 2015