Prime-time viewership numbers compiled by The Nielsen Co., for Oct. 26-Nov. 1. Listings include the week’s ranking, with viewership for the week and season-to-date rankings in parentheses. An “X” in parentheses denotes a one-time-only presentation.

1. (X) World Series Game 4, Fox, 22.76 million viewers.

2. (X) World Series Game 1, Fox, 19.51 million viewers.

3. (X) World Series Game 2, Fox, 18.90 million viewers.

4. (X) World Series Pre-Game, Game 4, Fox, 17.82 million viewers.

5. (3) “Dancing With the Stars,” ABC, 17.38 million viewers.

6. (1) “NCIS,” CBS, 16.70 million viewers.

7. (18) “The OT,” Fox, 16.61 million viewers.

8. (7) “The Mentalist,” CBS, 15.53 million viewers.

9. (X) World Series Game 3, Fox, 15.40 million viewers.

10. (8) “CSI: Crime Scene Investigation,” CBS, 15.24 million viewers.

11. (12) “Dancing With the Stars Results,” ABC, 15.20 million viewers.

12. (10) “Desperate Housewives,” ABC, 14.08 million viewers.

13. (4) “Grey’s Anatomy,” ABC, 13.74 million viewers.

14. (16) “60 Minutes,” CBS, 12.94 million viewers.

15. (21) “Survivor: Samoa,” CBS, 12.19 million viewers.

16. (12) “CSI: Miami,” CBS, 11.52 million viewers.

17. (12) “Two and a Half Men,” CBS, 11.41 million viewers.

18. (24) “Amazing Race 15,” CBS, 11.22 million viewers.

19. (5) “NCIS: Los Angeles,” CBS, 11.09 million viewers.

20. (16) “The Big Bang Theory,” CBS, 10.86 million viewers.