- Help! P-P-Pooh!
- Oh, my. That 'Help! P-P-Pooh!' sounded very much like Piglet.

11 seconds sound clip from The New Adventures of Winnie the Pooh - Pooh Skies / April Pooh (S3E5).

You can hear this line at 00:13:17.604 in the Blu-ray version of the TV Series.

Quote context

[...]

- Ah! Oh, my. Honey! Lots of honey.

- April fool!

- No, you're not. You're Christopher Robin.

- Silly old bear. I mean it's April Fool's Day. You know, when everybody gets fun tricks played on them. It seems someone has already started playing them on you.

- I'd better get home and see if there's any April Fool tricks waiting for me.

- Hmm. I wonder if this April Fool is someone to be afraid of or not. I think I shall have to ask him right after breakfast. Or perhaps lunch.

- Help! P-P-Pooh!

- Oh, my. That 'Help! P-P-Pooh!' sounded very much like Piglet.

- Oh, dear.

- Piglet, you called for help and for Pooh. We're here.

- Please come in, Pooh Bear, if you're sure you're not a flood.

- Are you here, Piglet, or just your voice?

- I'm here, Pooh.

- Why are you so very up, Piglet?

- Because down is so very wet.

[...]