On October the 20th 2005 the Top Billing show on SABC 3 aired a show about geocaching. Discombob from Cape Town was interviewed, and the presenters did a multi cache around Cape Town. At the time there were 18,000 active geocaches worldwide, and only 350 active geocaches in South Africa. The final location of the "race" as the presenters did it is still active today
There was a discussion on the South African forum here and here. A little bit more information is available here, although the video link no longer works.
The video is now available again on YouTube: