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Also in this episode:

Catalyst: animal immune systems

In this segment:

Manuel Aviles-Santiago, PhD,
Tahora H. Nazer

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Explore the complicated history of African-American entrepreneurship in America

The history of business and entrepreneurship lies at the heart of the American story, but often absent from that narrative are the experiences of African Americans. "Boss: The Black Experience in Business" tells some of those forgotten stories and trends Tuesday, April 23, at 7 p.m. on Arizona PBS.

Long-awaited 'Les Misérables' miniseries comes to Arizona PBS

A blockbuster novel and global theater phenomenon for over 150 years comes to life in a multi-layered retelling of "Les Misérables," this time as a dramatic six-part miniseries Sunday nights at 8 p.m. on Arizona PBS.

'Breakthrough' unravels the history of our world's transcendent ideas

Take a mind-blowing journey through human history using six iconic objects that we often take for granted in "Breakthrough: The Ideas That Changed the World" each Wednesday at 9:30 p.m. on Arizona PBS.