It's All Greek to Scooby - S2-E13
Continuity mistake: When the gang gets to Santorini, the centaur shows up again and they take off to the right following the wall. Then the 'old maniac Moped guy' comes at them from the right going left. So they are going right, the Centaur is behind them to the left, and the Moped guy is to the right. So they go into a doorway between them. The Moped guy comes from the right and goes to follow, then suddenly the Centaur comes from the right also, when he was on the left. (00:16:40)
It's All Greek to Scooby - S2-E13
Continuity mistake: As the camera pans down to show a Greek play being staged, the two figures in the center of the stage have their backs to the audience. It cuts to show the gang in the front row and suddenly the guy shown is facing the audience. (00:04:30)
It's All Greek to Scooby - S2-E13
Continuity mistake: When Fred is saying he is trying to find the word "run" in Greek, he is looking to his left at Daphne. It cuts to an overhead view as Shaggy begins speaking and Fred's head is instantly looking to his right at Shaggy. (00:05:30)
It's All Greek to Scooby - S2-E13
Continuity mistake: As Lysander reaches into the pool, he picks up a wad of mud and laughs. Before he finishes the laugh, he holds up his hands, holding a diamond now, which instantaneously has all the mud removed from it. (00:00:55)
It's All Greek to Scooby - S2-E13
Continuity mistake: When the gang is talking to Major Portsmouth, there is a guard sitting at a desk with his legs propped up on the desk. A lamp is on this desk. A few shots later when seen from above, the lamp has vanished. (00:07:15)
It's All Greek to Scooby - S2-E13
Continuity mistake: When the Greek man approaches them and starts shouting at them in Greek, the gang huddle up together, startled. The camera angle changes and instantly it is just Fred and Daphne together with the other three nowhere close. (00:02:25)
It's All Greek to Scooby - S2-E13
Continuity mistake: Lysander digs through the box of jewelry frantically trying to find the medallion that was slapped away from him. After the merchant says he sold it to Shaggy, the box is shown again and the arraignment of the jewelry changes back to about how it was before he dug through it. (00:04:25)
It's All Greek to Scooby - S2-E13
Continuity mistake: After the Centaur falls of the scaffoldings, Fred, Daphne and Velma climb up and are seen standing straight up while Shaggy is putting the medallion back in his shirt. It cuts to just show them and suddenly Fred has his hands on his hips, Daphne is dusting herself off, and Velma is bent over trying to catch her breath. (00:06:15)
It's All Greek to Scooby - S2-E13
Continuity mistake: The gang catches a ride on a boat and have to find room in the animal storage area. Shaggy and Scooby are shown sleeping next to the sheep. But when Lysander walks in, they are next to the goat. (00:10:35)
Answer: Because of the goo that was on it.