Sunday, June 19: The one-hour documentary Penis Dementia: The Search for the Perfect Penis purports to be a ``fearless and uninhibited quest for honest and surprising answers in search of the perfect, modern penis.'' Modern? Can these things become obsolete or old-fashioned? And what defines perfect? The producers describe the penis as a unique piece of biological engineering with three primary functions _ urination, procreation and sexual pleasure. But the multitasking organ is also considered in terms of health issues and common mythology. (Discovery Health).