The public is invited to the free premiere of part three of the five-part North Central College Sesquicentennial documentary produced with Naperville Community Television, "A Promising Start," at 7 p.m. in Madden Theatre at the Fine Arts Center, 171 E. Chicago Ave. Part three explores "Challenges of the Post World War II Years." Complimentary refreshments will be served. The documentary series production is led by Naperville Community Television’s Emmy Award-winning Executive Director Elizabeth Braham Spencer, who also is adjunct professor of broadcast communication at the College.