You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract NFL Tries to Capitalize on Rabid Fans Who See TV as the 'Second Screen' League's Redesigned Mobile App no Longer Exclusive to Verizon Customers By John McDermott, Published on August 22, 2013 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.