Today Your source for all things celebrity and entertainment. Charlie Sheen has found a new ally: Dr. Mehmet Oz . Dr. Oz appeared on Bravo's Watch What Happens Live Wednesday and revealed that he and Sheen are appearing on a special together next week in which they "chase the cure" for HIV. "We're going to take some untraveled roads together for it," he said. Host Andy Cohen also asked the famed cardiothoracic surgeon whether or not he thought Sheen should have admitted in his Today show interview that he was having unprotected sex after he knew he was HIV-positive.