This concert, keyed to the 200th birthdays of Giuseppe Verdi and Richard Wagner, was taped on May 30, during a violent rainstorm – in terms of mood-setting, perfect for Wagner, but not Verdi good for Giuseppe. Conductor Lorin Maazel, tenor soloist Michael Schade and the Vienna Philharmonic stuck with it, holding court in what they said later was an exhilarating concert experience. And here it is, though viewers at home can stay dry. Check local listings.