Elmo: "If you're always happy you're never sad"

Elmo, one of the most beloved characters of Sesame Street, and Brenda Campos, director of social impact for Latin America for Sesame Workshop, tell us how they have been these 50 years since Sesame Street was born. It was initially broadcast on 180 public television stations in the United States, now reaches more than 150 countries and is translated into 70 languages.