Ohh, bother!
4 seconds sound clip from The New Adventures of Winnie the Pooh - Paw and Order (S1E12).
You can hear this line at 00:17:58.831 in the Blu-ray version of the TV Series.
Quote context
[...]
- Just one. Do you know how to untie us?
- No, but if you hum a few bars, we'll try to fake it.
- Nothing's going to stop us now.
- I really hope the Masked Bear gets here soon.
- Better make your move, Sheriff.
- I really, really hope the Masked Bear gets here soon.
- They'll be here in the nick of time, eager to assist.
[...]