Catalyst: Shaping the Future

One of the largest seed vaults in the world is located in the Arctic, where thousands of seed varieties are stored in case of a crisis that wipes out plants important for humankind’s survival. As we preview the latest episode of the Arizona PBS show “Catalyst: Shaping the Future,” we’ll take a look at a smaller seed vault located in the Arizona desert.

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Learn the lives of famous women from their siblings in 'Tale of Two Sisters'

"A Tale of Two Sisters" is a series that explores the lives of famous women and their lesser-known siblings. The series airs Monday nights at 8 p.m. on Arizona PBS and is narrated by Rachael Stirling.

'Silent Witness' returns to Arizona PBS

The BBC drama "Silent Witness" comes to Arizona PBS with two-hour episodes airing Sunday nights at 10 p.m. this fall.

'Poldark' returns for a fourth season beginning Sept. 30

Poldark, season 4

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