A list of the top 20 prime-time programs in the Nielsen ratings for Oct. 20-26

Prime-time viewership numbers compiled by the Nielsen Co. for Oct. 20-26. Listings include the week’s ranking and viewership.

1. NFL Football: San Diego at Denver, CBS, 20.22 million.

2. NFL Football: Green Bay at New Orleans, NBC, 18.8 million.

3. “NCIS,” CBS, 17.13 million.

4. “NCIS: New Orleans,” CBS, 16.13 million.

5. “The Big Bang Theory,” CBS, 16.02 million.

6. “The Walking Dead,” AMC, 13.8 million.

7. “Sunday Night NFL Pre-Kick,” NBC, 13.55 million.

8. NFL Football: Houston at Pittsburgh, ESPN, 13.28 million.

9. “60 Minutes,” CBS, 13.23 million.

10. World Series Game 2: San Francisco at Kansas City, Fox, 12.92 million.

11. World Series Game 5: Kansas City at San Francisco, Fox, 12.64 million.

12. “Dancing With the Stars,” ABC, 12.58 million.

13. “NFL Thursday Night Pre-Kick Show,” CBS, 12.19 million.

13. World Series Game 1: San Francisco at Kansas City, Fox, 12.19 million.

15. World Series Game 3: Kansas City at San Francisco, Fox, 12.13 million.

16. “The Voice” (Tuesday), NBC, 11.95 million.

17. “The Voice” (Monday), NBC, 11.9 million.

18. “Madam Secretary,” CBS, 11.71 million.

19. “Blue Bloods,” CBS, 11.42 million.

20. “Scorpion,” CBS, 10.75 million.

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ABC and ESPN are 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. AMC is owned by AMC Networks.