Catalyst: Ant Antibiotics

“Catalyst” explores how ants can help us better use and respond to antibiotics, which are becoming over-used and less effective globally.

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In this segment:

Clint Penick

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'Call the Midwife' returns for season 9

The medics and midwives of Nonatus House encounter new challenges as the population shifts, rules change and old diseases return. Meanwhile, their own experiences are fueled by love, loss and doubt. "Call the Midwife" begins its new season on March 29 at 7 p.m. 

'Nova' delivers stories from the front lines of science

"Nova" explores new discoveries and how we have come this far on Wednesdays at 8 p.m. on Arizona PBS.

Country music icon Garth Brooks receives Gershwin Prize for Popular Song

Garth Brooks is the youngest recipient of this prestigious prize. The special features an all-star tribute from his family, friends and admirers.