CBS is temporarily halting production of television's top-rated comedy, “Two and a Half Men,” following news from Charlie Sheen's publicist that the actor is in rehab and is taking a break from the show. Publicist Stan Rosenfield announced Tuesday that Sheen has entered a rehab facility “as a preventative measure.” He asked for privacy for Sheen, 44, but did not specify why the embattled actor was seeking treatment. Sheen's bosses expressed support for the actor in a statement that said they were temporarily stopping production of the show. The statement offered no timetable for when the show would resume taping. Assistant District Attorney Arnold Mordkin said Tuesday he hadn't heard that Sheen had entered rehab and couldn't discuss what bearing it might have on the case. Sheen's wife, Brooke, is also in rehab seeking treatment for an undisclosed reason, her attorney Yale Galanter said Monday. She is still asking that the charges be dismissed, he said. Until Tuesday, Charlie Sheen's legal problems hadn't disrupted taping of “Two and a Half Men,” one of CBS' top shows and TV's top-rated comedy. “Two and a Half Men,” about the romances and family life of two brothers (Sheen and Jon Cryer), is the anchor of CBS' Monday comedy lineup, which also includes “The Big Bang Theory” and “How I Met Your Mother.”