 FAIR: When describing DOOP, Hermes likens it to the federation in  Star Trek (using those exact words), but in a later episode, when  Fry says "Star Trek" he is immediately arrested as the show was  banned long before then, and saying the shows name is forbidden.  However, Hermes use of the name of "Star Trek" was in the privacy  of the Planet Express office, while Frys was in a video store, in  public.