This podcast episode explores the history of Christmas lights, tracing their origins to the invention of the light bulb by Thomas Edison. It details the role of Edward H. Johnson in promoting electric Christmas lights as a safer alternative to live candles and highlights the challenges and obstacles faced by early adopters. The episode discusses the growing popularity and affordability of Christmas lights over time, from being expensive luxuries to an affordable tradition. It also delves into the energy consumption of Christmas lights and the emotional appeal of big fat colored bulbs.