It's up to m-m-me to save the kingdom.
3 seconds sound clip from The New Adventures of Winnie the Pooh - A Knight to Remember (S3E39).
You can hear this line at 00:18:17.040 in the Blu-ray version of the TV Series.
Quote context
[...]
- I hope the dragon doesn't mind my dropping in like this.
- Oh, he must be away on a visit. I'll come back later.
- Oh, d-d-dear. Macaroni marmalade, mockingbird milkshake.
- This isn't so very terrible. Could use a few curtains and maybe some flowers and...
- I must remember I'm a b-b-brave, and f-f-fearless knight.
- It's up to m-m-me to save the kingdom.
- I suppose I really should expect this from a wizard who turns himself into frogs.
- Magnificent m-m-mustard, mismatched m-m-mushrooms, m-m-moonstruck marigolds...
- Magnificent magic most mysterious, make meek me make a monster into mozzarella marmalade!
[...]