D'Argo's tongue contains adaptive venom- the victim takes in only enough to lose consciousness, so it cannot be used to kill.
While on Earth, D'Argo apparently made an appearance on The Late Show with David Letterman, not the first reference to that show, where he thought the audience were laughing with him.
There are several references in this episode to the earlier "Kansas", such as the returning Sheriff describing his experience, and "Terra Firma", which featured Bobby filming his footage and Olivia Crichton in a prominent role.
The crew apparently believe Aeryn has been taken to Katratzi, the place Aeryn and Sikozu overheard the Scarrans say they were taking Grayza in Bringing Home the Beacon. Despite asking around, no one had ever heard of Katratzi, and the crew seemingly gave up hope on finding Aeryn rather quickly. Crichton persisted, having heard it earlier from Sikozu-Stark in "Unrealized Reality". Now, Crichton must find out the location, presumably from Sikozu-Stark.
In "Terra Firma" Crichton refers to Bobby as his cousin, but here we learn he is in fact his nephew.
Sikozu: Crichton...listen to yourself. Everything lives and everything dies...whether you wish it or not, and you have to deal with it.
Dr. Walker: (of D'Argo) Look...you see only differences...tentacles, a tongue with venom. Everything about him screams 'Alien'. Now... close your eyes. Listen. General Ka D'Argo could easily be you or me.
Chiana: When do you give up?
Crichton: I don't.
Chiana: Well, you got to give up sometime.
Crichton: No. I don't.
Crichton: They never even gave it a chance.
Rygel: Well, what do you expect.
Crichton: It's not what you expect...it's what you hope for.
Rygel: (being interviewed by Bobby) If Earth is remembered at all, it will most likely be for the quality of it's manual labor.
Sikozu: A stupid as you must think them, the Scarrans have managed to build one of the most extensive empires in the galaxy, in part, and I shall repeat this because it does not seem to sink in, by not advertising the locations of their secret bases.
D'Argo: I've seen lots of your movies, and in every film, the aliens are always evil and Earth always is victorious.
Bobby: You mean we have to learn that there are good aliens?
D'Argo: No. I mean you have to learn you won't always win.
Bobby: You've spent three years in deepest, darkest space, battling aliens and evil races. What was the worst part?
Chricton: The worst part, um, was the complete and utter lack of toilet paper.
Bobby: Do religions hate each other where you come from?
Noranti: Oh, good heavens, no. Religions are grand, lofty ideas. Religious followers, now that's another story.
Bobby: So we're not so different.
Noranti: That's nothing to be proud of.
Crichton: What's my 'tell'?
Olivia: Your lips. When you see Aeryn they soften just a bit.
Crichton: She has a word for us, it's called 'yesterday'.
Olivia: Yeah, right.
Crichton: She have a tell?
Crichton: What is it?
Olivia: Her eyes. She's waiting for you.
Rygel: It's a backward planet (Earth) full of superstitious xenophobic morons. Nothing makes sense if they didn't think of it first, and even then it's simplistic drivel. (remembering he's talking to Crichton) Beg pardon, how rude, are you from there?
Bobby: So, all in all, you could live here?
Rygel: As long as I get to keep my slaves.
Bobby: They're servants. They get paid. You don't own them.
Rygel: What? You're kidding. They come running when I call.
Bobby: The government wants you to feel at home.
Rygel: Then give me slaves.
Bobby: OK, besides eating, what's your favourite thing to do?
Rygel: Uh, gamble. You can do it over the phone. You can call females, too. 1-900-SLUT-GIRL.
Noranti: (about humans) You're so ignorant but you never give up, even in the face of insurmountable odds.
Chiana: You can't tell when I'm lying.
Sikozu: Yes we can. We all can.
Sikozu: You open your mouth and words come out of it.
Crichton: Sikozu Shanu?
Sikozu: A reasonable interpretation of the word 'no'.
This was the final episode to be filmed when the cancellation of the show was revealed.
The final scene began on "take 33" in recognition of Anthony Simcoe's often stated comment that "Take 2 is for dickheads - but take 33: Brando!"
At the end of the episode, the credits are squashed, Sci Fi-style and in something of a parody of the network, there is a preview of "next week on Alien Visitation." It is mentioned in the preview that DK's real name is Douglas Knox.
Nick Tate, who guest stars as the presenter R. Wilson Monroe, is a veteran actor who played Captain Alan Carter in the sci-fi series Space: 1999. He has also appeared in Star Trek: The Next Generation, The X-Files, Star Trek: Deep Space Nine and Party of Five, a show that Ben Browder also once starred in.
Both David Kemper and Brian Henson have cameo appearances in this episode. David Kemper is the blacked out "High Level Administrative Source", and Brian Henson is "Dr. Edmund Johnston".
Bobby: I'm here with IASA Commander John Crichton, the first and only human to boldly go where no man has gone before.
Bobby uses the line from the opening sequence of original Star Trek television show, which was about a ship of humans exploring the galaxy.