- Creator Backlash: Wil Wheaton later recalled that the cast were unhappy with the episode as they didn't like several aspects of it including the fingercuffs joke and the Ferengi in general.
- First Appearance: The Ferengi make their infamous debut.
- Old Shame: Pretty much everyone was embarrassed by the Ferengi in this episode.
- Recast as a Regular: One of the Ferengi is played by Armin Shimerman, who went on to play Quark in Star Trek: Deep Space Nine and was almost single-handedly responsible for rescuing the Ferengi from the scrappy heap.
- What Could Have Been: The original story concept named the planet Gamma Tauri IV Gamma XII. The Enterprise-D followed the first Ferengi ship and had to face a Ferengi warship while in orbit of a planet. When the ships lost their energy away teams beamed to the surface and had to face creatures which are described as a mixture of Earth dogs and Ferengi Uvex. Beverly Crusher was part of the away team and it was planned to let the Ferengi have green blood. Portal 63 was originally named Dilo, a groundskeeper of the planet. At the end of the story, the planet became a library planet for the Humans and the Ferengi.
- You Look Familiar:
- Mike Gomez and Tracey Walter, who played DaiMon Tarr and Kayron respectively, later appeared as different Ferengi in the sixth season episode "Rascals."
- While it's not entirely obvious thanks to Portal 63's old-age make-up, Darryl Henriques later played the Romulan Ambassador in Star Trek VI: The Undiscovered Country.
Trivia / Star Trek: The Next Generation S1 E4 "The Last Outpost"