Prime-time viewership numbers compiled by Nielsen for April 20-26. Listings include the week's ranking and viewership.

1. "20/20," ABC, 17.10 million.

2. "The Big Bang Theory," CBS, 14.63 million.

3. "Dancing With the Stars," ABC, 13.42 million.

4. "The Voice" (Tuesday), NBC, 11.25 million.

5. "Scorpion," CBS, 10.71 million.

6. "The Voice" (Monday), NBC, 10.60 million.

7. "Madam Secretary," CBS, 10.50 million.

8. "60 Minutes," CBS, 10.39 million.

9. "NCIS," CBS, 10.194 million.

10. "Survivor," CBS, 10.192 million.

11. "Criminal Minds," CBS, 10.06 million.

12. "Blue Bloods," CBS, 9.99 million.

13. "NCIS: New Orleans," CBS, 9.96 million

14. "Grey's Anatomy," ABC, 9.55 million.

15. "The Odd Couple," CBS, 9.37 million.

16. "Mom," CBS, 9.01 million.

17. "Modern Family," ABC, 8.85 million.

18. "NCIS: Los Angeles," CBS, 8.83 million.

19. "The Good Wife," CBS, 8.74 million.

20. "CSI: Cyber," CBS, 8.42 million.

___

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