The two captains of the bowling teams have the same names as two cities in North Dakota: Fargo (most populous) and Bismarck (the capital).
First time Fargo uses the term "frak," a television-friendly swear word invented for fellow sci-fi series "Battlestar Galactica" (1978). It is commonly used by fans of that show in place of its less acceptable f-word cousin; its use by Fargo throughout the series further highlights his nerd cred.
Fargo's nemesis is named Bismarck which is what Artie calls Fargo in Warehouse 13.
Gamma radiation, which is what turned the Eureka bowling team green, is the same thing that turned Bruce Banner into The Hulk.
The back of the Eureka bowling team shirt reads: "E=MC"spared". A "spare" is a bowling term.