LOS ANGELES (AP) _ CBS won the latest ratings battle, but networks continued to lose viewers during the summer rerun season.

For the second consecutive week, ratings released by the A.C. Nielsen Co. were in the single digits. According to figures released Tuesday, CBS finished first with a 9.6 average. Each ratings point represents 931,000 homes.

ABC was second with 9.4. NBC, hampered by lackluster ratings for its broadcasts of two National Basketball Association Conference finals games, was third with a 9 average. It failed to place any shows in the top 10.

Among the few non-reruns last week was the final episode of ABC's yuppie drama ''thirtysomething.'' The network's recent cancellation announcement helped make May 28's closing installment the No. 4 show on television last week, the highest ranking in the series' four-year history.

A rerun of ABC's comedy favorite ''Roseanne'' was the most watched program last week, followed by a repeat of the network's ''Coach'' series.

CBS' ''60 Minutes,'' one of the few non-reruns in the top 10, finished third.

The back-to-back CBS Monday night comedies ''Murphy Brown'' and ''Designing Women'' tied for fifth. ABC's ''20-20'' newsmagazine was seventh. CBS' reality drama ''Rescue 911'' was eighth.

ABC's Friday night hits ''Family Matters'' and ''Full House'' finished ninth and 10th respectively.

Tying for 10th place was a rebroadcast of the pilot for ''All in the Family,'' the classic CBS series that debuted 20 years ago. Co-created by Norman Lear, ''All in the Family'' is being broadcast for six weeks alongside Lear's new program ''Sunday Dinner.''

The older series' pilot fared much better than the new program's opening episode. ''Sunday Dinner'' tied for 20th place.

In the network news ratings battle, ABC with Peter Jennings won again, this time with an 8.6. CBS and Dan Rather were second with 7.6. NBC and Tom Brokaw were third with 7.2.