When Charlie encounters Larry, he asks about the set of knotted strings draped around his neck. Larry refers to it as an "Aztec quipu" and says it was used in Tenochtitlan (the capital of the Aztec empire). Quipus, however, were used by the Incas of the Andes Mountains of South America, not the Aztecs of Mexico.
Larry got his first telescope when he was three. When he was in fifth grade, he was president of the rocket club, and when he was in high school, he was a docent at the planetarium.
Larry was in space four months and twelve days.
Math used in this episode:
Equivalent Retaliation Protocol
At the beginning of the episode, as Amita and Charlie walk into the campus, they look high up at the sky and apparently see the rocket from which Larry is landing from. The next scene, as they enter their office, the rocket, as shown on the TV, is already safe and running on the runway.
1 MILLION BILLION SYNAPSES
100 BILLION NEURONS
Charlie: (About the prisoner) Well, if he lied, that's agression, you need to aggress on him.
Don: Yeah, alright. Well, that I can do.
David: How is Pony connected?
Brickle: Pony would do a hit for the Girl Scouts as long as they had enough cookie money to pay him.
David: Next time I don't answer my phone, do me a favor. Just call the cavalry, okay?
Colby: Yeah, and what if you're having sex?
David: Point taken.
Berelli: (After the shootout) No one is ever going to believe this!
Colby: (sarcastically) Nice suit there Brickle.
Brickle: Nice face!
Charlie: Are we all so bad down here?
Larry: Beauty and fragility of life on earth, it takes my breath away.
Charlie: So what's your problem?
Larry: That I will habituate and lose the vision.
Charlie: I feel like I'm in some dream with the ghost Larry and I just want to wake up and talk to the real guy.
Millie: One small step for Dr. Fleinhardt, one giant leap for Cal Sci.
The Netherlands: October 29, 2007 on Veronica
Germany: March 3, 2008 on SAT 1
Czech Republic: July 22, 2009 on TV Nova
Finland: April 23, 2010 on Sub
Slovakia: February 8, 2011 on JOJ
Music featured in this episode was "Gravity" by John Mayer (opening and closing scenes).
Jeremy Sisto was credited as a Special Guest Star for this episode.
Peter MacNicol returns in this episode from being on FOX's 24.