Catalyst: Plastics and fertilizer in our oceans

“Catalyst” examines two major issues affecting the health of the world’s oceans: plastics and fertilizer.

Sponsor message:

In this segment:

Charlie Rolsky

Sponsor message:

Sign up to receive the Arizona PBS Insider

Get up-to-the-minute information about your favorite programs and learn more about Arizona PBS news and events.

New 'Doctor Blake Mysteries' airing this fall, winter

Doctor Blake Mysteries

"Doctor Blake Mysteries" returns with new episodes every Saturday at 8 p.m. Dr. Lucien Blake is a keeper of secrets and a solver of mysteries in the rural gold rush city of Ballarat, Australia.

Elemental: Covering Sustainability

Elemental: Covering Sustainability is a multimedia collaboration covering urbanization, climate change, water and renewable energy.

'Frontline' examines more controversial newsmakers this fall

“Frontline” investigates the controversial stories shaping our times, from criminal justice to politics to global issues.