According to El Chavo del Ocho
At its peak of popularity during the mid-1970s, it had a Latin American audience of 350 million viewers per episode
But according to
The population of Latin America in 1975 was 322,7 millions. And I'm pretty sure in the mid 70's not everybody had a tv, as a matter of fact in the mid 80's my family in Latin America had a black and white tv.
Which was the audience of "El Chavo" in the mid 70's?