Extras
Appraisal: Ub Iwerks "Steamboat Willie" Drawing, ca. 1928
Appraisal: Chicago Bears Memorabilia, ca. 1923
The beloved Mystery! series will debut its last season starting on Sunday, June 14, 2026 at 9/8c.
Explore the life and legacy of notable Black scholar and civil rights pioneer W.E.B. Du Bois.
Discover how Farm Stay vacations are giving city kids a chance to discover rural America.
Travel to Nebraska where artists find rural life peaceful and inspiring to their creative work.
See how a Wisconsin dairy farm turns cow manure into an energy source.
On Farm to Fork, fun with fungi and a special recipe for pasta.
Harvest season in Florida is all about picking and packing your favorite blueberries.
Saving America’s rural heritage one board at a time. Meet Pennsylvania’s “barn saver.”
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Be Smart Season 13
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Be Smart Season 1
How thousands of tiny brains, obeying simple rules, solve problems no individual can understand.
Joe visits a flavor lab to uncover how our senses shape our taste.
Here is the REAL science about "alpha males."
How did the mass extinction of the dinosaurs play out, moment by moment?
Think traits like eye color or tongue-rolling are simple genetics? Think again.
Why is the Martian sky red by day… but blue at sunset?
Seedless fruits are delicious, convenient… and completely unnatural.
What does randomness really mean? And why your digital life depend on it?
Why do we have different blood types? And why do we have blood at all?