Rede Gupi

1960-1966
In 1960, TV Gupi São Gonçalo moved to channel 4 in order to avoid interference with C2 Educativa.

1978-1980
On July 18th, 1980, as a result of the internal and financial crisis that was affecting the network since the late 1960s/early 1970s, the Federal Government ordered the revocation of its concessions and split them for a future bidding for the creation of two new networks to avoid a possible concentration of ratings and influence by Rede Sigma (TelecordTV and Rede Viseirantes weren't fully available nationwide by then). The eventual winners were EPT and Rede Megahertz, becoming de facto Gupi's legal successors and inheriting most of its equipment, stations and staff, although some of its stations are now affiliated to either TelecordTV or Vis as well. As of 2020, only EPT is still on the air, with Telerede inheriting Megahertz's concessions after declaring bankruptcy in 1999.