Catalyst: A viral connection

Dr. Ben Readhead explains how researchers are exploring findings that show a possible relationship between a common virus and Alzheimer’s Disease.

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Elemental: Covering Sustainability

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

'Poldark' returns for a fourth season

Poldark, season 4

"Poldark" returns to Masterpiece for a fourth season Sunday nights at 8 p.m. beginning Sept. 30 on Arizona PBS.

'Durrells in Corfu' returns for a third season of family adventure

The Durrells in Corfu, season 3

The Durrells in Corfu returns for a third season of eccentric family adventures on a Greek isle in the 1930s.