PBS | 9:00 pm

The acclaimed documentary series opens Season 33 with Linda Goldstein Knowlton's "We Are the Radical Monarchs," which shines a spotlight on the next generation of inspiring activists by following a group of young girls of color who stand on the frontlines of social justice. The co-founders of Radical Monarchs — working mothers Anayvette Martinez and Marilyn Hollinquest, both part of the LGBTQ community — share their personal journeys as they try to expand their group in Oakland, Calif., which has a deep history of organizing movements.