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 It's an Ad Within an Ad Within a TV Show for Univision Novela In Bid to Sell Buicks With Intrigue and Plot, Network and GM Roll Out Character-Driven Spot By Laurel Wentz, Published on March 28, 2011 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.