In the 1970’s I got all of South Africa’s radio offerings on shortwave including the local broadcasts SABC English and Springbok Radio.
My high school library here in the USA also had “South African Panorama’ magazine on the shelf an official government publication.
Yes, It had a lot of unique culture. In the 1990’s I used to donate to a religious organization that would recruit thousands of SA “ministers” to go to other white countries to escape the coming apocalypse.