Catalyst: Racing against infectious diseases

“Catalyst” follows ASU professor and microbiologist Cheryl Nickerson as she seeks to find cures for remaining strands of infectious diseases.

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In this segment:

Cheryl Nickerson, professor, Biodesign Center for Immunotherapy, Vaccines and Virotherapy

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Summer fun 2021: Beat the heat at indoor playgrounds

When temperatures rise this summer, stay active with these indoor, kid-friendly activities.

'Death in Paradise' returns for season 10

Death in Paradise season 10 cast

The smash-hit whodunit returns, as D.I. Neville Parker attempts to solve a slew of mysterious murders in the sun-soaked Caribbean.

165 art shows you can watch right now (no membership required!)

All of these shows are available to watch right now without a membership. Just click the links and press play. Or better yet, find them in the free PBS Video app for your Roku, Apple TV, Samsung Smart TV, Fire TV Stick, phone or tablet.