</blockquote>
The [http://en.wikipedia.org/wiki/Holodeck Holodeck] is a facility where an artificial reality can be created. It was a feature of starships in the Star Trek universe.
===[[7.20 The Girl with the Dungeons and Dragons Tattoo]]===
Charlie makes the [http://en.wikipedia.org/wiki/Vulcan_salute Vulcan salute] when she farewells Sam and Dean.
===[[8.10 Torn and Frayed]]===
</blockquote>
Klingon is a language spoken by the race of the same name in Star Trek.
===[[8.11 LARP and the Real Girl]]===
Charlie makes the [http://en.wikipedia.org/wiki/Vulcan_salute Vulcan salute] when she farewells Sam and Dean.
==[[Ghostfacers]]==