CNN embeds Ad space between Video Browser

Is this how we tell the world what we watch?
CNN has began placing ad spots within the video navigation section. Viewers scan through videos by clicking on the arrows and shifting the list of videos left and right. CNN has intelligently placed an ad spot as the 3rd square from the right. Will this generate CPM or CPC? Not sure. Not even sure what type of ad rates you can charge for that, $0.50 CPM?