Prime-time ratings compiled by Nielsen Media Research for July 23 to July 29. Top 20 listings include the week's ranking, with rating for the week and season-to-date rankings in parentheses.

An ``X'' in parentheses denotes a one-time-only presentation. The rating is the percentage of the nation's estimated 102.2 million TV homes. Each ratings point represents 1,022,000 households.

1. (10) ``Who Wants to be a Millionaire-Thursday,'' ABC, 9.3, 9.5 million homes.

2. (5) ``Who Wants to be a Millionaire-Tuesday,'' ABC, 9.2, 9.4 million homes.

3. (15) ``60 Minutes,'' CBS, 8.4, 8.5 million homes.

4. (30) ``Weakest Link,'' NBC, 8.3, 8.5 million homes.

5. (50) ``Fear Factor,'' NBC, 8.2, 8.4 million homes.

6. (6) ``Everybody Loves Raymond,'' CBS, 8.1, 8.3 million homes.

6. (21) ``Who Wants to be a Millionaire-Friday,'' ABC, 8.1, 8.2 million homes.

8. (7) ``Who Wants to be a Millionaire-Sunday,'' ABC, 7.9, 8.1 million homes.

8. (38) ``Primetime-Thursday,'' ABC, 7.9, 8.1 million homes.

10. (32) ``20/20-Friday,'' ABC, 7.8, 8.0 million homes.

11. (12) ``CSI: Crime Scene Investigation,'' CBS, 7.7, 7.8 million homes.

12. (60) ``48 Hours-Monday,'' CBS, 7.4, 7.6 million homes.

12. (7) ``Law & Order,'' NBC, 7.4, 7.5 million homes.

14. (35) ``60 Minutes II,'' CBS, 7.3, 7.4 million homes.

14. (55) ``Movie: The Edge,'' ABC, 7.3, 7.5 million homes.

16. (84) ``Weakest Link-Sunday,'' NBC, 7.1, 7.2 million homes.

17. (19) ``Becker,'' CBS, 7.0, 7.1 million homes.

18. (25) ``Law & Order: Special Victim's Unit,'' NBC, 6.7, 6.9 million homes.

19. (7) ``Friends,'' NBC, 6.6, 6.7 million homes.

20. (66) ``48 Hours-Thursday,'' CBS, 6.4, 6.5 million homes.