The SABC channel have been criticised for showing Tropika Island of Treasure just two days after her death, with some suggesting that the producers had commercial motives.
Samantha Moon, a producer on the show, insisted that it had nothing to do with ratings and said she had gained permission from Steenkamp's family first.
"I took [the decision] after consultation with her family and the feeling was that this is an amazing woman, who you don't have much in the public domain apart from modelling work," Moon told the BBC.
"We felt that it was important for people to know that there was more to the narrative of Reeva than an exceptionally beautiful girl in a bikini, that she was strong and vibrant and funny and lovely."
Reeva's cousin Sharon Steenkamp told the Associated Press: "Her last words to us personally was that she wants us to watch it."
Steenkamp was found dead at Pistoruis's home in the early hours of Thursday morning.