This Saturday, the Boch Center will become the first performing arts center in Boston to offer on-site rapid COVID-19 tests to any patron attending that evening’s performances at the Wang and Shubert Theatres. Guests can be tested starting at 6:45 PM Saturday in the Wang Theatre reception area located directly to the right of the main theatre entrance. There is a $30 charge per test for guests who want to take part in the program. Results will be available in 15-30 minutes.