The "George Spelvin" name is a traditional pseudonym used by actors who do not want to be credited under their own names for playing a role in a film, TV show, or play. Georgina Spelvin adopted the feminine variation of the name as her stage name when she entered the pornographic film acting field, and since then "Georgina Spelvin" has fallen out of favor as a pseudonym for actresses looking to not be credited under their names, especially since she became one of that genre's first stars to cross over to mainstream films.
After talking about the computers on top of the elevator Carol/Cheryl says, "Who am I? Elisha Otis?!" Four seasons later, Cyril points out in Vision Quest (2015) that Elisha Otis didn't invent the elevator, only the safety mechanism.
With Archer apparently being so accurate at darts, all he had to do was throw at the triple 20 and the men would have won.
The Japanese characters hanging on the wall in George Spelvin's apartment symbolize Love and Pain.
First episode in which Krieger shouts: "G**damn you all to Hell!"