Giorgio A. Tsoukalos plays himself as a speaker about alien influences on the architecture of ancient civilizations.
As research for this episode's storyline, Chris Sheridan and some of the other writers attended the 2019 AlienCon in Los Angeles.
Only part of this episode had been shot when production was abruptly halted due to the COVID-19 pandemic, the rest was completed six months later.
Harry (Alan Tudyk) and Asta (Sara Tomko) attend a UFO convention in Dulce, New Mexico. A "census designated place" located in northwest New Mexico near the southern Colorado state line, Dulce has a population around 2,743.