I can identify by name any Star Trek: The Original Series episode within the first 30 seconds of the episode starting, or at least before the teaser ends. The reverse is true: given a TOS episode name, I can tell you the plot. Add to that oodles and oodles of other Star Trek trivia.
Examples:
-Cliff Bole, director of many Star Trek episodes, is the only one to have a species, the Bolians, named after him (they even mentioned the famous Cliffs of Bole as an important geographic feature of the Bolian homeworld).
-Given most any Starfleet ship, I can tell you its class; I’d be surprised if I couldn’t do so for most of the alien ships too.
-I know Pavel Chekov’s middle name: Andreivich (sp?).
-I know that in “Day of the Dove” Piotr is the name of the brother Chekov was brainwashed into believing he had.
-I know that Data’s legs are 82 centimeters in length.
I have read all published Harry Potter books several times over, have seen the only released movie several times over, have watched the scenes deleted from that movie, and know about the next book to be published: Harry Potter and the Order of the Phoenix, in which Dumbledore and other good witches and wizards, including Sirius and Mrs. Arabella Figg, band together to fight the newly-arisen Lord Voldemort. I have never been bested at a game of Harry Potter trivia (although, to be fair, I have encountered some questions I didn’t know the answer to).
I know what “rheology” means: the study of how an object responds to stress and strain, i.e., its properties of shear and deformation.
I know what a Punnett square is (a table used for simple genetics to find probabilities of gene combinations in offspring).
I know that the meter was originally defined to be the diameter of the earth divided by 10,000.
I know the three main types of neutrino (a very small subatomic particle): the electron neutrino, the tau neutrino, and the muon neutrino.
I know that the Epsilon Eridani system is ten light-years from Earth.
I know that the Brewster angle is the angle at which light strikes a surface such that all reflected light is polarized. The tangent of that angle is equal to the index of refraction of the surface divided by the index of refraction of the other medium. I know that the index of refraction of a medium is equal to the speed of light in a vacuum divided by the speed of light in that medium.
I know that Ralph Waldo Emerson, good friend of Henry David Thoreau, hated the way Thoreau wrote. Email me if you want the citation or more information.