The Wrong Side of the Tracks/From Hero to Eternity/And the Kitchen Sink - S1-E1
Continuity mistake: The Wrong Side of the Tracks: When Lumpy puts the yellow sign in front of the roller coaster entrance, the sign is a roller coaster cart with a no symbol over it. However, when Lumpy removes the sign later on, the no symbol is facing the opposite way, and a hard hat symbol appears on the sign. (00:02:16 - 00:04:21)