Charlie Sheen has had his fair share of personal problems, from substance abuse to soliciting prostitutes (Hell, a meltdown triggered his boot from Two and a Half Men), and tomorrow he'll be disclosing the largest personal announcement of his life on Today. That announcement? Revealing he is HIV-Positive. Or so says a source close to the actor.

"I've known about this a long time, it's not a surprise to me," acclaimed Hollywood publicist and crisis manager Howard Bragman told People. "I feel very sorry for his pain. And I hope it's used as a teachable moment for the world. This is a disease that can affect anyone."

Tune in to Today Tuesday morning to watch the 50-year-old actor make his announcement in an intimate interview with Matt Lauer.