Sponsor message:

Sponsor message:

PBS KIDS celebrates Earth month with new episodes, activities

Enjoy a special week of adventures from "Wild Kratts," "Nature Cat" and "Ready Jet Go!" beginning April 15.

'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.

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.