The UT Arboretum Society will present an evening of laughter and live improv at the UT Arboretum Auditorium in Oak Ridge in a benefit for the organization. Gates open at 4:30 p.m., and social hour, with drinks and a variety of cheeses, begins at 5 p.m. The comedy troupe show starts promptly at 6 p.m. A ticket for one glass of wine and the live show are included in the ticket price. Soft drinks will be provided, and a wine…