"My biggest struggle here ... was getting other people in this country to understand my vision," Oprah told the network. "For a long, long time it was cumbersome and difficult. And I gave up about three years ago."
But she changed her mind after officials were going to name it after her anyway and "I had to have some control over what's going to happen", she said.
"I think there's some residual apartheid effect here," she said, adding that many "people didn't people that African girls should have such beautiful surroundings" at the Oprah Winfrey Leadership Academy for Girls at Henley-on-Klip, south of Johannesburg.
"Everybody is calling it lavish. I call it comfortable," she said. "Why would I build tin shacks for girls who come from tin shacks?"
Oprah said she is prepared to take care of all the costs of running the school in addition to the $40-million it took to plan and build it. She hopes her example will be an inspiration for others.