CNN Undermining Its TV Advertisers with New "Live Webcasts"

On CNN's AC360 program last night, Anderson Cooper was promoting "live webcasts" with news anchor Erica Hill, which would run during on-air commercial breaks. As explained here, the idea is that CNN viewers can go "behind the scenes" to continue their AC360 experience by watching the live stream on their computers. I dutifully did this and watched Hill and Cooper somewhat mindlessly chatting/flirting for several minutes. But wait: if CNN is urging on-air viewers to turn their attention to these "webcasts" during commercial breaks, then that means that CNN is diverting attention from its own on-air advertisers. That undermines CNN's all-important advertiser value proposition. That of course begs the question: is CNN's ad sales team on board with these webcasts? And if so, what are they thinking??
http://www.videonuze.com/blogs/?2008-09-1907:14:34/CNN-is-Undermining-Its-Own-Advertisers-with-New-AC360-Live-Webcasts-/&id=1960