Watch NOVA S04E18 (Season 4 Episode 18)

Watch NOVA S04E18

Across the Silent Barrier

NOVA explores the different means by which hearing-impaired people have learned to penetrate the world of the hearing by visiting with Kitty O'Neil—a woman record-holding speed car racer; Frances Parsons, an advocate of hearing-impaired persons' rights; and workers at Silent Industries—a factory in Los Angeles founded by a deaf man.. You can watch NOVA S04E18 here.