- Oh, it's Groundhog Day! What's a groundhog day?
- Why, everybody knows that, buddy bear. It's a... a...
- Well, it's the day a groundhog comes out of his hole.
- Precisively.

18 seconds sound clip from The New Adventures of Winnie the Pooh - Bubble Trouble / Groundpiglet Day (S2E3).

You can hear this line at 00:12:57.933 in the Blu-ray version of the TV Series.

Quote context

[...]

- Hey, bunny boy! Yoo-hoo! Anybody home?

- What are you doing?

- Well, we're trying to find out when winter is, long ears.

- And you're the only one with a calendar, Rabbit.

- Why, ahem, oh, I, uh, yes. So I am.

- Ahem. Well, let's see. As of first thing this morning, today is Groundhog Day.

- Groundhog Day?

- Groundhog Day?

- Groundhog Day?

- Oh, it's Groundhog Day! What's a groundhog day?

- Why, everybody knows that, buddy bear. It's a... a...

- Well, it's the day a groundhog comes out of his hole.

- Precisively.

- And if he sees his shadow, that means there will be six more weeks of winter. But if he doesn't, spring starts tomorrow.

- Spring? But what happened to winter?

- It's gone. Over. We missed it.

- Christmas, too?

- According to the calendar, Christmas, too.

- But the only way to be completely sure winter is over is to find a groundhog and check with him.

- Hmm? Groundhog? Who are you calling a groundhog? I'm a gopher, not a groundhog. What are you trying to do, insult my ancestors? Hmph.

[...]