TiVo is opening a new Chicago sales office in response to increased demand for interactive ad services. At the same time, TiVo hired Jeff Stettin to be Vice President of National Ad Sales. Stettin, who was formerly VP of Integrated Solutions for Viacom, will report to Karen Bressner, Senior VP of Advertising Sales. TiVo also hired Dennis Dunphy as Director of Midwest Ad Sales. Dennis, formerly VP of Central Regional Sales at Telemundo for NBC Universal, will oversee day to day operations in the new Chicago office, reporting to Stettin.