Trivia: A film reference to Star Trek: First Contact: Archer says something about a group of cybernetic creatures (The Borg), that tried to stop Cochrane from launching his mission into space that was stopped by a group of humanoids, that were also from the future (USS Enterprise NCC 1701-E).
Trivia: Trip tells Malcolm, "if I remember my honors biology course correctly, your hair and nails keep growing for quite a while after you're dead." However, this is a myth and would never be taught in any biology class, especially in the future. Nothing keeps growing after you're dead, as the skin dries out, and the body decomposes, the skin retracts and just makes the hair and nails look longer. This is more likely a mistake, but since it's possible Trip isn't a biology expert, forgot his honors biology, or is just teasing Malcolm, it should be noted as trivia.
Trivia: When Travis is in his old room talking with Nora about Enterprise, look on the bookshelf behind Travis. There's a large white book about Chicago gangs of the 1920's. In the original series episode "A Piece of the Action" it is determined that 100 years ago the ship Horizon accidentally left a book about Chicago gangs which influenced the entire culture to mimic the mobster lifestyle. (00:20:55)
Trivia: T'Pol tells Archer that they're on the fifth planet in the Ceti Alpha system, the same planet where Kirk maroons Khan in TOS episode, "Space Seed." Even more tragic is that anyone who's seen Star Trek II The Wrath of Khan will know that this planet, Ceti Alpha V, will be rendered virtually uninhabitable in a little over 100 years when Ceti Alpha VI explodes. So what's left of humanity has traded one destroyed world (Earth) for a ticking time bomb.
Trivia: The space shuttle Enterprise appears in the title sequence of the show - this shuttle was named after the Enterprise from the original series (after a poll, and also because Star Trek was President Carter's favourite show). A case of reality imitating art and then art imitating that reality.
Trivia: The character of T'Pol was originally going to be T'Pau, the Vulcan high priestess who appears in the original series episode "Amok Time" and in the film Star Trek III: The Search for Spock. Her name was changed because per WGA rules, the scriptwriter who'd written "Amok Time" would have had to be paid a royalty for every episode.
Trivia: In the opening scene of this episode (S4E18), footage from the 1996 movie "Star Trek: First Contact" was ingeniously intercut with new footage to create a startling revision that is still a Star Trek fan favorite to this day. Actors James Cromwell (Zefram Cochrane) and Cully Fredricksen (the Vulcan emissary) shot the original scene for the film "First Contact" in 1995. When the TV series "Star Trek: Enterprise" recycled the movie footage 10 years later, both Cromwell and Fredricksen received a day's pay for appearing as extras in this TV episode (about $120 for a day's work in 2005), even though they never physically appeared on the "Enterprise" set.