Revealing mistake: In the closeup of Twiki, you can see Felix Silva's mouth in the mouth grille.
Buck Rogers in the 25th Century (1979)
1 revealing mistake in Space Vampire - chronological order
Starring: Mel Blanc, Erin Gray, Gil Gerard, Felix Silla
Planet of the Slave Girls - S1-E2
Continuity mistake: When Buck goes to run out of the door of the factory, it's a solid door, with a bar-type handle. When the scene shifts to the outside, the door he runs out of leads directly inside, but the door has vent slats on the lower half, and the handle is completely different.