11/01/2008 05:12 am ET | Updated May 25, 2011

Katie Couric's Sarah Palin Interviews Have Modest Effect On CBS News Ratings

NEW YORK -- Katie Couric's series of buzzworthy interviews with vice presidential candidate Sarah Palin have boosted "CBS Evening News" slightly.

Couric scored an exclusive interview last week with Palin while she was at the United Nations General Assembly to meet world leaders in town for the opening sessions. Those interviews -- which included several clips that got a lot of Web traffic -- appeared on "Evening News" on Wednesday and Thursday nights.

Neither night's newscast was able to move into first or second place against ABC and NBC, though "Evening News" showed ratings increases on both nights. Wednesday's household rating was up 14% to a 4.1, compared with ABC's 5.6 and NBC's 5.3. Thursday's household rating was up 8%, compared with the 5.4 that ABC and NBC received.

CBS News declined to release internal numbers but said the traffic to was "substantially higher than normal."

Meanwhile, Couric's webcast, which aired following the debate, was the most popular yet. It saw 2,000 questions for Couric and analysts submitted online before and during the webcast

Read more on Hollywood Reporter