Among viewers in the news demo of 25-to-54, CNN averaged 354,000 during the hour 8212; up nearly 300 percent from the time period8217;s four-week average of just 121,000. Ten o8217;clock has been a tricky one for CNN: After swapping out repeats of Anderson Cooper 360, the hour has been grounds for primetime navigate here experimentation 8212; mostly for documentary specials. The researchers actually do cover some