Daniel says of his dreams "Everything was weird, my hair was different." This is a reference to any ommissions the show may have made in scaling back the timeline to before the start of the show or the movie for these dreams. Daniel's hair was longer in both early seasons and the movie, one assumes that years before in the timeline it was long as well.
Carter is humming the Stargate SG-1 theme tune in the elevator. On the new Monk episode, that aired an hour later, on the night this premiered in the U.S., they also did an in-joke on that show's theme song riff, having the characters gripe about the old theme song being better than the new one.
David DeLuise is the fourth DeLuise to appear on Stargate - Dom, Michael, and Peter have all appeared in the past.
This episode was alternatively entitled Black Widow Carter.
