Nielsen's top programs for May 13-19

Prime-time viewership numbers compiled by Nielsen for May 13-19. Listings include the week's ranking and viewership.

1. "The Big Bang Theory," CBS, 18.5 million.

2. "Game of Thrones," HBO, 13.61 million.

3. "Young Sheldon," CBS, 13.6 million.

4. "NCIS," CBS, 11.7 million.

5. "Unraveling the Mystery: A Big Bang Farewell," ...