Every week, Ken Jennings and John Roderick add a new entry to the OMNIBUS, an encyclopedic reference work of strange-but-true stories that they are compiling as a time capsule for future generations.
In which Procter & Gamble spends almost thirty years trying to bring its fat substitute to market, only to see it vanish from the public memory almost immediately, and Ken just wants to eat devil's food cake. Certificate #51232.