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 Denny's Embraces AARP Audience to Combat Sales Slump Once Known as 20-Something Late-Night Hangout, Chain Faces Increased Competition Across Dayparts By Emily Bryson York, Published on June 18, 2010 5 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.