South Africans first watched television in 1976, when all media was still controlled by their Nationalist government. Since the abolition of apartheid, however, video has become a unique medium with which South African artists have explored the legacies of forced segregation and mapped out new territories of identity. Test Patterns brings together some of the strongest work to come out this still-developing field; the image of artist Churchill Madikida, covered in the clay paint of a Xhosa initiate, repeatedly ingesting and regurgitating corn, is hard to shake. But then, so is history.