This article makes a socio-historical reflection on the 25 years of the legislation that foresaw the implementation of Legislative TVs in Brazil. With qualitative research, it addresses the advances that occurred in parliaments with the creation of TV Senado, TV Câmara, in addition to the pioneering role of TV ALMG, from Minas Gerais. It reveals that the lack of clarity in the laws ends up allowing deviations in the objectives of a Public TV. He considers that it was necessary to define financing models so that TVs can work independently. The paper also discusses the impact on the Santa Catarina parliament with the emergence of TVAL in Santa Catarina.