Continuity mistake: Harmony's T-shirt switches between white and yellow at least twice during each episode of the series.
Revealing mistake: Woofer and Tweeter were often seen hanging off the back of Benita's car. From the way the front of their costumes are flattened out you can tell they were lying on a flat surface to get the effect of them flying.
Firefly, Light My Fire - S1-E1
Continuity mistake: Joy exits her house twice: once after the curtains pull back, then a second time after Harmony says his line.
Firefly, Light My Fire - S1-E1
Continuity mistake: When the boys are tied up, they begin with their feet tied but in the next shot, IQ and Courage have their feet separated.
Firefly, Light My Fire - S1-E1
Revealing mistake: Courage winces and reacts before the stereo-zapper is fired.
The Great Voice Robbery - S1-E3
Audio problem: Several times throughout the episode while the characters are speaking in other people's voices the spoken words don't match the lip movements.
If I Had the Wings of a Bugaloo - S1-E5
Other mistake: After Courage and Joy are free from the glue traps, there is still glue on their feet, yet they walk without any trouble.
If I Had the Wings of a Bugaloo - S1-E5
Other mistake: Joy's feet are stuck in Benita's glue trap, but she steps backwards twice before Harmony and Courage pull her out.
