Measuring Engagement
The CW series One Tree Hill averaged just a 1.3 rating in adults 18-49 for the season to date, to rank 184th among primetime network series. But a funny thing happens to the teen drama's value if ranked another way: It's in a four-way tie for a lofty sixth place in IAG engagement (see table). Among the other three series tied for sixth in engagement is Fox's Prison Break, which has more than do...