The chat airs from 7:30 to 9 p.m. Sunday on "Oprah's Next Chapter" on OWN.
Family members react to NBA player Collins' announcement earlier this week that he is gay. The program also features Jarron Collins, Jason's twin and a former NBA player; their parents, Portia and Paul Collins; and aunt Teri Jackson, a San Francisco superior court judge.
Winfrey shared an excerpt of her interview with the parents.
Oprah: "So was there a releasing of the dream for you, of the idea that you'd had for your son, of who he would be walking down the aisle with?"
Paul: "Yes, yes it was. I think any parent would have that for a child. Especially since you didn't know the child was gay. You know, you have these things: He'll eventually get married, he's waiting for the end of his career to do that -- and you just expect that that's going to happen -- he'll have children and whatever that might be. And then you have to… you change from that."
Oprah: "Did you change immediately?"
Portia: "Well, part of the process after he told us was to go home and kind of let it resonate, for the two of us to talk about it. And on the way home we called him, and on the way home we said we love you. And still, like Paul said, you’re going through a lot of different checklists. Did you see this? Did you think this? No."