It is impossible to provide sports programs that will appeal to the entire region. Argentines like their ' rock nacional ', Brazilians like samba, Colombians like cumbia, Dominicans like merengue and Venezuelans like salsa. It is impossible to provide music programs that will appeal to the entire region. Argentines, Mexicans and Puerto Ricans speak Spanish in local accents with plenty of slang mixed in. It is impossible to sound authentic across the entire region.
People like to read about gossip and scandals about familiar celebrities.
They would not care about the peccadilloes of politicians or singers that they have never heard about. It is impossible to provide stories of universal interest. Overall, people are interested in news from the perspectives of their own countries. People are not interested in international news that do not affect themselves. Here are the exact same arguments applied to national media.