Discovery Communications has announced the appointment of Luis Silberwasser to the new role of international head of content for Discovery Networks International (DNI). The new role has been created to help boost ratings successes across the company’s 100 networks in over 180 countries. This news comes after Discovery announced the global launch of TLC, one of the initiatives Silberwasser will focus on in his new role. TLC is due to reach more than 75 markets and over 100 million households by spring 2011. Silberwasser takes up his new role from his current position as senior vice president of the content group for Discovery Networks Latin America/U.S. Hispanic and general manager of U.S. Hispanic Networks. Discovery Networks International has also announced that Sahar Elhabashi, COO of DNI, will be leaving the company and her position will not be filled.