A list of the top 20 prime-time programs in the Nielsen ratings for Feb. 9-15

Prime-time viewership numbers compiled by Nielsen for Feb. 9-15. Listings include the week's ranking and viewership.

1. "Saturday Night Live: 40th Anniversary," NBC, 23.14 million.

2. "NCIS," CBS, 18.77 million.

3. "NCIS: New Orleans," CBS, 16.19 million.

4. "The Walking Dead," AMC, 12.27 million.

5. "Empire," Fox, 11.96 million.

6. "Scorpion," CBS, 11.86 million.

7. "Blue Bloods," CBS, 11.46 million.

8. "The Big Bang Theory," CBS, 11.35 million.

9. "SNL: 40th, Red Carpet," NBC, 11.32 million.

10. "American Idol" (Wednesday), Fox, 10.66 million.

11. "60 Minutes," CBS, 10.46 million.

12. "NCIS: Los Angeles," CBS, 10.35 million.

13. "Mom," CBS, 10.22 million.

14. "Criminal Minds," CBS, 9.89 million.

15. "Hawaii Five-0," CBS, 9.81 million.

16. "Modern Family," ABC, 9.77 million.

17. "American Idol" (Thursday), Fox, 9.62 million.

18. "Person of Interest," CBS, 9.53 million.

19. "Two and a Half Men," CBS, 9.33 million.

20. "Scandal," ABC, 9.32 million.

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ABC is owned by The Walt Disney Co.; AMC is owned by AMC Networks; CBS is a division of CBS Corp.; Fox is owned by 21st Century Fox; NBC is owned by NBC Universal.