A preview of "Henry Koerner's Pittsburgh" and lecture by his son, Joseph Koerner, at Chatham University Thursday was preceded by a reception at the home of Barbara and Daniel Shapira, all to benefit the Pittsburgh Ballet Theatre's "Light: the Holocaust & Humanity Project."

Mackenzie Carpenter's video program, "Omnivore," is available exclusively at PG+, a members-only web site of the Pittsburgh Post-Gazette. Our introduction to PG+ gives you all the details.