NIELSEN RATINGS

According to the A.C. Nielsen Co., here are the top 10 shows for the week ending Aug. 13, their networks and ratings. (Each rating point equals 954,000 homes.)

1. Friends - NBC, 16.1

2. Seinfeld - NBC, 14.1

3. ER - NBC, 13.8

4. Home Improvement - ABC, 13.1

5. Coach - ABC, 12.2

6. Ellen - ABC, 11.9

7. PrimeTime Live - ABC, 11.5

8. Grace Under Fire - ABC, 11.4

tie. 20/20 - ABC, 11.4

10. Murphy Brown - CBS, 11.3