Prime-Time Nielsen Ratings

Wednesday, August 16th 2000, 12:00 am

By: News On 6

Prime-time ratings compiled by Nielsen Media Research for August 7 to August 13. 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 100.8 million TV homes. Each ratings point represents 1,008,000 households.

1. (4) ``Survivor,'' CBS, 17.4, 17.55 million homes.

2. (1) ``Who Wants to be a Millionaire-Tuesday,'' ABC, 14.7, 14.83 million homes.

3. (3) ``Who Wants to be a Millionaire-Sunday,'' ABC, 14.2, 14.29 million homes.

4. (2) ``Who Wants to be a Millionaire-Thursday,'' ABC, 13.5, 13.61 million homes.

5. (13) ``Big Brother-Wednesday,'' CBS, 11.3, 11.40 million homes.

6. (34) ''20/20-Downtown,'' ABC, 9.4, 9.45 million homes.

7. (15) ``The Practice,'' ABC, 9.0, 9.07 million homes.

8. (16) ``Everybody Loves Raymond,'' CBS, 8.3, 8.38 million homes.

9. (11) ''60 Minutes,'' CBS, 8.2, 8.24 million homes.

9. (X) ``Vanished: Object of Desire,'' ABC, 8.2, 8.24 million homes.

11. (23) ``Dharma & Greg,'' ABC, 8.0, 8.03 million homes.

12. (X) ``West Wing'' (Wed., 10 p.m.) NBC, 7.6, 7.68 million homes.

13. (41) ``ABC Monday Night Movie: Columbo: Ashes to Ashes,'' ABC, 7.5, 7.54 million homes.

14. (X) ''48 Hours,'' CBS, 7.3, 7.39 million homes.

14. (29) ``West Wing'' (Wed. 9 p.m.), NBC, 7.3, 7.30 million homes.

16. (8) ``Friends,'' NBC, 7.2, 7.28 million homes.

17. (19) ``Becker,'' CBS, 7.1, 7.13 million homes.

17. (18) ``Touched by an Angel,'' CBS, 7.1, 7.17 million homes.

17. (64) ``West Wing'' (Mon.), NBC, 7.1, 7.17 million homes.

20. (34) ``Dateline Friday,'' NBC, 7.0, 7.09 million homes.

20. (13) ``Law & Order: Special Victims Unit,'' NBC, 7.0, 7.08 million homes.