For decades and today, the Springboks and All Blacks has a rivalry that been intense, controversial, etc. This 1976 match in Newlands Ground was one of those matches. Years later, the controversial 1981 tour to NZ. More came after that. This 1976 Tour was controversial because the African countries wanted the New Zealanders out of the Olympics because of this tour. The IOC didn't respond back because the IRFB (now IRB) controls rugger and it doesn't have nothing to do with the Olympics. The only thing IRFB really do back then is to get countries into their membership. They didn't really did anything back in the amateur era but they barely change the rules of the game and helped the Kiwis and Aussies launch the World Cup in '87.
The All Blacks lost the series to the Boks 3-1 and they didn't win a series in South Africa until professionalism was in its infancy in 1996. Commentary is in Afrikaans