- Knock knock, Bert.

- Who's there?

- Turnip.

- Turnip who?

- Do you mind if I turn up my music? Thanks.

(rock music plays)

- Ernie, it's too loud.

Too loud, Ernie!

- What's that, Bert? I can't hear you over this loud music.

(laughs)

- Ernie!

(Ernie sings)

- Yeah!

(phone rings)

Hey Bert, what do you say

when you meet the two-headed monster?

- Hello?

- No, Bert. Hello, hello.

(laughs)

(Bert grumbles)

- Goodbye.

I think he means goodbye, goodbye.

(laughs)

(phone rings)

- Knock knock.

- Who's there?

- Repeat.

- Repeat who?

- Okay. Hoo.

(Ernie hoos repeatedly)

(Bert sighs)

- Okay, very funny, Ernie. Very funny.

- I'm just repeating.

(Ernie hoos repeatedly)

(Bert grumbles)

- Ernie!

(laughs)

(sighs)

Ernie has been bombarding me with these silly jokes all day,

but I have finally got a great one for him.

Yeah. Yeah. Shall we call him?

Yeah, let's do that.

(phone rings)

- Oh, hi there, Bert.

- Hi, Ernie. Knock knock.

- Come in.

- What? No, Ernie, you're supposed to say, "Who's there?"

- Barry.

- Barry? No, you're not supposed to guess.

Anyway, who's Barry? Barry who?

- Bury the treasure where no one can find it.

Arrgh, me hearties. Yo ho ho and a bottle of milk.

(laughs)

Hey, that was a good one, Bert. See ya.

- What just happened?

(phone rings)

- Knock knock, Bert.

- Who's there, Ernie?

- Stopwatch.

- Stopwatch who?

- Stop what you're doing and let's dance. Whoo hoo, hit it!

(dance music plays)

(Ernie sings)

- I got nothing better to do.

- Yeah, there you go, Bert. Get down. Whoo!

(laughs)

- Oh yeah!

Check this out.

- Looking good, Bert.

(laughs)

- [Announcer] Caring for each other.

Visit sesamestreet.org/caring

for videos, activities, and tips for the whole family.