The Batmobile from the 1960s television series is parked in the street in some of the Western town shots.
Alien cantina with similar background characters and music
Movie that Snider references that Dorothy "plays a robot".
Poster is shown.
Crow: "...and God bless Galaxina."
DVD can be seen
DVD is shown.
Movie watched by Ordric on the bridge of the Infinity.
Mr. Spot the bartender, with similar haircut and Federation-like uniform
A music plays every time they say "Blue Star", much like the horses neighing in Young Frankenstein every time someone said "Frau Blucher"
Alien monster being born inside of a human character, as well as spaceship designs
There's a character named Galaxina on All My Androids.