A one-hour documentary that recaps a century of institutional history (and caps Penn College's yearlong Centennial celebration) met with an enthusiastic and appreciative audience on its initial showing Thursday afternoon. The premiere of "Working Class: 100 Years of Hands-On Education," chronicling the story of the college and its contribution to the American workforce, was held at 3:30 p.m. in the Klump Academic Center Auditorium. The college co-produced the film with WVIA Public Media, which will broadcast it on public television on a variety of dates beginning at 7 p.m. Tuesday.