BBC Worldwide has appointed Guillermo Sierra as senior VP and general manager of Channels and Branded Services for Latin America and U.S. Hispanic. Sierra will be responsible for the growth and strategic development of BBC Worldwides portfolio of commercial channel services, including BC Entertainment, BBC HD and CBeebies. He will also be in complete charge of CBeebies for Latin America and the U.S. Hispanic. The executive is to assume his new position from the Miami office on July 30, and will report directly to Jana Bennett president of Worldwide Networks and Global BBC iPlayer at BBC Worldwide. Sierra will also work closely with Fred Medina, BBC Worldwides executive VP for Latin America who will help give him strategic direction for expansion in the region.Guillermo brings a great deal of vision and an unrivalled knowledge of the Latin American and US Hispanic media landscape to this role. He will be a valuable addition to the business as we look to build on the success of our existing portfolio in this fast growing market, and look for new opportunities to introduce new brands to viewers through a range of platforms Bennett said.Before being chosen for this position, Sierra was CCO and Senior VP at VME Media Inc.