Ratings for "The CBS Evening News With Katie Couric" have gone down again, last week hitting the lowest point for the Eye network's evening newscast since 1987. Meanwhile, ABC's "World News With Charles Gibson" was on top of the heap for the 5th straight week, beating the once dominant "NBC Nightly News With Brian Williams." For last week, the ABC newscast had an average audience 2+ of 7,784,000, compared to 7,192,000 for NBC and only 5,959,000 for CBS.
