In which a German church organ perform a John Cage composition so slowly that the concert will last 639 years, and Ken has an opinion on who the horniest characters are in Middle-earth. Certificate #24524.
In which a combination of Cold War paranoia and good old-fashioned racism convince America that deliciously "umami" Asian food is actually killing them, and Ken eats kelp in a kayak. Certificate #21879.
In which two overeager fighter pilots chase down a runaway drone over Southern California, accidentally lighting much of the state on fire, and John wants to be a marshal of some kind. Certificate #31303.
In which an adventurous Prussian polymath single-handedly revolutionizes modern science, and even helps kick-start the liberation of South America and the environmental movement, and John and Ken ponder their own inevitable disappearance down the memory hole. Certificate #41705.
In which a vaudeville baby whistler becomes the world's first movie star and goes on to invent the electric windshield wiper, and Ken's knowledge of Ogden Nash insults finally comes in handy. Certificate #52050.
In which many of the most commonly taught grammar and usage rules in English are revealed to be arbitrary, made-up, out-of-date, or all three, and John explains why Miss Manners should be in charge of the Internet. Certificate #41607.
In which an eccentric metallurgist with a theater troupe begins one of the strangest science experiments in history and learns that humankind might not be ready for Mars yet, and Ken watches Jeff Bezos injure a fig tree. Certificate #34308.
In which we follow the history of government games of chance from ancient China to today's bankrupt Powerball millionaires, and John grifts his elementary school out of a side of beef. Certificate #32943.
In which a bygone errand, developing vacation snapshots, becomes so widespread that it gets its own chain of drive-thru kiosks, and Ken's mom looks great in a red knit jumper and gold polyester turtleneck. Certificate #38597.
In which four mysterious cones are unearthed from proto-Celtic Europe, perhaps holding untold secrets of the calendar and cosmos, and John is surrounded by the happy nudists of the Danube. Certificate #23490
In which a periodic "atmospheric river" from the Pacific Ocean threatens to put a quarter of Californians underwater in the very near future, which scares Ken so much that he decides to drill holes in his couch. Certificate #23973.
In which doomed Arctic explorers and a spiritualist's vacuum sealer help revolutionize the science of food storage, and John reveals that his "dueling scars" are actually from drinking cold canned pasta. Certificate #42072.
In which over a century of mathematicians are unable to solve a geometry problem straight out of a coloring book, computers provide their first ever math "proof," and Ken challenges John to map a donut. Certificate #28876.