Hoping for it to be sampled by a wider audience, CBS moved its CBS Evening News With Katie Couric to 8 00 p.m. Wednesday. But, with competition from American Idol , which drew 25.1 million viewers in the 8 00 p.m. half hour, the newscast attracted only 6.5 million viewers, about a million fewer than the newscast's usual audience. Nevertheless, it beat NBC's Night Rider , with 5.8 million viewers, and a repeat of ABC's Lost, with 5.4 million.