- This circus is haunted by a... a ghost clown.
- A ghost clown?
- A ghost clown?

9 seconds sound clip from Scooby-Doo, Where Are You! - Bedlam in the Big Top (S1E10).

You can hear this line at 00:03:58.102 in the Blu-ray version of the episode.

Quote context

[...]

- Well, good luck.

- Yeah. So long, kids.

- If I were you, I'd get out of this neck of the woods and fast!

- What kind of a jinx would make them leave the circus?

- Search me.

- Well, let's go see.

- I'm sure sorry to hear that Max and Samson took off. That's the last straw. Now my circus won't open this year.

- That's too bad, Mr. Barnstorm.

- Tell me, what is this jinx anyway?

- This circus is haunted by a... a ghost clown.

- A ghost clown?

- A ghost clown?

- Yes. When the ghost clown appears in your circus, you might as well quit. Circus folks are superstitious.

- But there are no such things as ghosts, Mr. Barnstorm.

- Well, there's so many strange things going on.

- What sort of strange things, Mr. Barnstorm?

- Weird things, like trapeze wires suddenly coming undone.

[...]