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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American Experience presents 'Reagan'

Re-examine the life and career of Ronald Reagan, America's most ideological president in his rhetoric, yet pragmatic in his actions. His vision of America divided the nation, yet no matter what people thought of him politically, Reagan always won them over personally.

Return to the world of 'Father Brown'

The charming Father Brown returns to solve more mysteries in the sleepy Cotswold village of Kembleford. The new season starts Saturday, Sept. 14, at 7 p.m. on Arizona PBS.

Solve mind-bending murders in the Saint Marie sunshine

Return to mind-bending murders in the glorious sunshine. This year sees the arrival of a new DI, Neville Parker, but Saint Marie isn't exactly his idea of paradise.