Danny Pintauro revealed he's HIV-positive on an all-new episode of Oprah's "Where Are They Now?" on Saturday.
"I wanted to tell you this a long time ago, but I wasn't ready. I'm ready now," he revealed, holding back tears. "I'm HIV positive. I have been for 12 years, and it's just a big deal. You know? It's not something that people are talking about, really."