Note: “To The Best Of Our Knowledge” ended production on September 27, 2025. Archives of past programs are available below. Every episode of “To the Best of Our Knowledge” is available in the American Archives of Public Broadcasting.
Latest Episodes
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Luminous: Reclaiming the Acid Queen
We all know Timothy Leary, the high priest of ‘60s psychedelia, but his partner, Rosemary Woodruff Leary, has largely been forgotten. She also had a remarkable life, even breaking Leary out of prison with the help of the Weather Underground. Now, biographer Susannah Cahalan tells her story — from the heady Sixties to a life on…
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Shannon Henry Kleiber on the poetry of the human voice
Shannon delights in the nuanced intonations of the human voice, and she has a special appreciation for poetry. We hear her interview with Alice Walker, who talks about responding to anger and Buddhist teachings on “taking the arrow out of the heart.”
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Charles Monroe-Kane on intelligent optimism
Charles reflects on one of TTBOOK’s core values — what we call “intelligent optimism.” It’s a complicated kind of hope, even brave in a time of despair and cynicism. And he plays snippets from some of his favorite interviews.
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Farewell from TTBOOK
You listened on car trips and overnight flights, in tents and canoes, kitchens and living rooms. You shared our love of ideas, our search for wonder, our curiosity and our belief in the future. Now, after 35 years, it’s time for us to say goodbye. In this hour, Anne talks with TTBOOK’s producers about some…
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Anne says goodbye and Steve reflects on Jane Goodall
Anne reflects on saying goodbye to TTBOOK after 35 years. And Steve talks about his interview with Jane Goodall, and why the minds of chimpanzees have always fascinated her. She’s the rare scientist who talks openly about her own spiritual experiences.
