Once upon a time, Peanut Butter and Jelly decided to join forces and become a lunchbox icon.  So on this episode, we'll explore the sweet and nutty origin of the PB&J - the sandwich that helped make the world safe for democracy.   Plus, we'll dazzle you with an array of colors - specifically Red, Yellow, and Green - and tell you how that trio of hues made their way onto every traffic signal in the land.   Join host Rick Peterson for these topics and more, as he answers the questions you've "Always Wondered" about.