Memorial Day Weekend Edition The 2008-2009 season which ended this week has seen the networks' ratings collectively drop 16%. FOX remained on top for the 5th consecutive year but even they fell 13% in viewership, a fall attributed to not having the Super Bowl as well as "American Idol" sinking in viewership. Only CBS saw an increase in viewership (11%) which was fueled by the success of "The Mentalist".
