RTP1 Logo History

RTP1 is the main television channel of Rádio e Televisão de Portugal, the Portuguese public broadcasting corporation. It is Portugal's first channel and was found in 1957 by Radio e Televisao de Portugal (founded in 1935 as Emissora Nacional). For a brief period, it was known and marketed as RTP, I Programa, and RTP Canal 1. RTP1 has a variety of programs, composed mainly of news and talk shows, sports, current affairs, national and international fiction, such as films and TV series. Unlike sister channel RTP2, RTP1 broadcasts commercial advertising, which, along with the license fee, finances the channel.

Original: https://www.youtube.com/watch?v=uVVfA3YVlj0