- No scent? He has to have a scent. Why, he'd have to be a ghost not to leave a scent. Uh... Did I say ghost?
- Uh-huh. Uh-oh.
10 seconds sound clip from Scooby-Doo, Where Are You! - Foul Play in Funland (S1E8).
You can hear this line at 00:04:25.178 in the Blu-ray version of the episode.
Quote context
[...]
- Oh, no! The cash register rang up 25 cents.
- I'm beginning to wonder if this place is haunted.
- Hey, Scooby, do you think we stand a chance of getting some cotton candy, too?
- Yeah!
- Hold it. I just saw somebody. There he goes again! Man, he's faster than a speeding bullet.
- Come on, Scooby. Pick up the scent.
- That was no ghost. He looks more like a man from Mars.
- Wow! Look what that last hot dog did to me!
[...]