Charlie Sheen will reportedly reveal to the world this week that he's HIV positive. Sources connected to NBC's "Today" tell TMZ that Sheen will sit down with Matt Lauer on Tuesday morning to make the announcement. NBC touted the interview in a press release as Sheen making a "revealing personal announcement." A tabloid report came out Monday claiming Sheen's been keeping the diagnosis secret for years. Fans of the actor imagine he'll address that report tomorrow morning on the program. Sheen, who in 2011 lost his starring role on Two and a Half Men amidst a notorious public meltdown, has remained largely out of the spotlight after FX decided not to renew his most recent show Anger Management, in late 2014.