The Telecurso is an educational system created by Fundação Roberto Marinho in 1977. It is divided into 2 sections: (previous 2° Grau) and (previous 1° Grau). It is available via broadcasts on many brazilian TV channels (namely, TV Cultura, TV Brasil, Rede Vida, TV Aparecida and Fundação Roberto Marinho's own Canal Futura) and via Telecurso's own website. The main broadcaster was Rede Globo, from Telecurso's creation until 2014.
Telecurso 2º Grau
Telecurso 1º Grau
On November 14th 2014, and for the first time, Rede Globo stopped broadcasting Telecurso, with its programming block being now occupied by news program Hora Um. However, the other TV channels continue broadcasting Telecurso until today.
https://www.telecurso.org.br/ Telecurso's website (in Portuguese)