The Secrets Behind Jeopardy! That Every Fan Should Know - Page 17 of 44

Color-Coding

In the early days, clues were laid out on color-coded index cards. Software technology has since replaced the index cards, but the color-coding remains.

The colors identify the four types of categories: academic, pop culture, wordplay, and kind of lifestyles, which is basically everything else. Things can get tricky as the categories are built.