Prime-time viewership numbers compiled by Nielsen for Feb. 23-March 1. Listings include the week's ranking and viewership.

1. "NCIS," CBS, 17.38 million.

2. "The Big Bang Theory," CBS, 16.67 million.

3. "The Walking Dead," AMC, 14.43 million.

4. "The Voice" (Tuesday), NBC, 14.06 million.

5. "The Voice" (Monday), NBC, 13.97 million.

6. "Empire," Fox, 13.9 million.

7. "NCIS: New Orleans," CBS, 13.71 million.

8. "60 Minutes," CBS, 13.55 million.

9. "Madam Secretary," CBS, 11.65 million.

10. "The Odd Couple," CBS, 11.08 million.

11. "Scorpion," CBS, 10.69 million.

12. "American Idol" (Wednesday), Fox, 10.38 million.

13. "Survivor," CBS, 10.04 million.

14. "NCIS: Los Angeles," CBS, 9.83 million.

15. "Hawaii Five-0," CBS, 9.79 million.

16. "Person of Interest," CBS, 9.63 million.

17. "American Idol" (Thursday), Fox, 9.43 million.

18. "Modern Family," ABC, 9.32 million.

19. "The Good Wife," CBS, 9.09 million.

20. "The Big Bang Theory" (Thursday, 9 p.m.), CBS, 9.04 million.

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