Revealing mistake: We can see Ecliptor's zipper from behind - slightly revealing on Saban's part, considering Ecliptor is supposed to be an evil monster henchman of Astromena's.
Revealing mistake: When Pablo as the ping pong bandit takes Tyrone's paddle, Tyrone asks if he can play Pablo again so can get his paddle back. When Pablo walks into the frame, his skin clips out of his coat. This also happens when he does the "Bandit Slammit".
The Powerpuff Girls Best Rainy Day Adventure Ever / Just Desserts - S2-E10
Revealing mistake: When the van drives upstairs, you can see that it wasn't destroyed.
The School of Hard Knocks - S1-E9
Revealing mistake: In the English dub, when showing the front of the flyer, it has filler text that is not related to what it is about. Also, its Poké Balls are slightly transparent and its picture can be seen through it. (00:05:43)
The Tomb-Keeper's Secret - S2-E46
Revealing mistake: Whilst discussing Marik with Ishizu, there is a wide shot of the bedroom where Joey says, "What if it's too late to save Marik from the evil that's inside of him?" In this shot, there is an animation error with Serenity's head. Serenity has her head turned to face Ishizu, but the turned head appears to have been poorly pasted over another version of Serenity's head that is facing directly forwards. (00:04:44)