Live theater [1] lives well in San Diego [2]. Most every area and district has at least a theater or two, and several big houses garner national acclaim for world-class productions.
If you’re in San Diego for more than one night, it will be worth your while to take in a show at the Old Globe, the La Jolla Playhouse, or one of the innumerable repertory theaters.
Links:
[1] http://www.moon.com/destinations/california/san-diego/entertainment-and-events/the-arts/theater
[2] http://www.moon.com/destinations/california/san-diego