In Season 4 episode "Black Swan" of the television crime drama NUMB3RS, the character Amita Ramanujan refers to universality classes when studying a map of the Los Angeles while attempting to do a time series analysis of overlapping Voronoi regions in an attempt to track the movements of a suspect.
Cite this as:
Weisstein, Eric W. "Universality Class." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/UniversalityClass.html