Hemisphere Media Group, Inc. announced the appointment of 26-year television sales veteran Nicolas J. Valls, former SVP of Network Sales at Univision Network, as EVP of Advertising Sales. In this newly-formed role, Valls will oversee national spot sales for WAPA Television and ad sales for WAPA America--the two currently ad-supported networks under the Hemisphere umbrella. Before departing in 2012, Valls had been with Univision for more than 25 years, joining the company in 1986 as a regional sales representative when it was the Spanish International Network.