In his solo show ta-da!, Josh Sharp draws on his immense charm and deft wit to navigate subjects that are far weightier than his upbeat title implies. They include pedophilia, cancer, gay-bashings of varying intensity, and a near-death experience. He does it while holding a clicker that initially projects everything he says on a screen behind him precisely: “Hi. Hello. What’s up. How are you? Hi. Hello. Hi. Welcome.” His diction is crisp and clear, so there’s really no need for the screen, except as a display of physical stamina and memory, and a source of visual variety. Eventually, though, under Sam Pinkleton’s direction, Sharp’s script and the screen projections diverge amusingly to add a layer of comic counterpoint—a practice that reaches back to Woody Allen’s What’s Up, Tiger Lily? in 1966.