Building on the success of the music-centric documentary series "Unsung," TV One introduces "Unsung Hollywood," which focuses on profiling film and TV stars. The hourlong series uses archival clips, contemporary performances, and behind-the-scenes footage to tell rare stories of film, TV, comedy and sports celebrities. Interviews with the subjects themselves, family members, friends and colleagues help present the accounts. Some episodes provide in-depth tales into the making of influential films and TV shows, including "What's Happening!" and "Cooley High," rather than focusing on peoples' lives.