Sheen has become a media phenomenon lately with off-beat rantings filled with lines that have become catchphrases, such as "tiger blood" and a drug called Charlie Sheen. It's all part of a campaign to disprove that he is a drug-using, reckless playboy. The future of his hit CBS show "Two and a Half Men" is uncertain. Cuban described Sheen as "somebody that everybody has a whole lot of interest in who is doing some interesting things, to say the least."