Prime-time viewership numbers compiled by Nielsen Media Research for Dec. 18-24. 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. (19) “NFL Postgame Show,” CBS, 17.23 million viewers.

2. (11) “Deal Or No Deal,” (Monday), NBC, 15.37 million viewers.

3. (3) “CSI: Crime Scene Investigation,” CBS, 12.95 million viewers.

4. (X) “Identity,” (Monday), NBC, 12.27 million viewers.

5. (6) “CSI: Miami,” CBS, 12.15 million viewers.

6. (10) “CSI: NY,” CBS, 12.14 million viewers.

7. (14) “NCIS,” CBS, 10.92 million viewers.

8. (13) “60 Minutes,” CBS, 10.86 million viewers.

9. (14) “Two And A Half Men,” CBS, 10.7 million viewers.

10. (X) “Rudolph The Red-Nosed Reindeer,” CBS, 10.58 million viewers.

11. (21) “Shark,” CBS, 10.26 million viewers.

12. (9) “Criminal Minds,” CBS, 10.25 million viewers.

13. (17) “House,” Fox, 10.11 million viewers.

14. (X) “Identity,” (Thursday) NBC, 9.53 million viewers.

15. (4) “Grey’s Anatomy,” ABC, 9.14 million viewers.

16. (X) “I Want a Dog for Christmas,” CBS, 8.89 million viewers.

17. (X) “Identity,” (Wednesday) NBC, 8.76 million viewers.

18. (55) “Dateline NBC,” (Wednesday), NBC, 8.64 million viewers.

19. (29) “The Unit,” CBS, 8.61 million viewers.

20. (21) “Law And Order: SVU,” NBC, 8.47 million viewers.