Season 9, Episode 18: "The Frogger"

George, you're not gonna find an electrician like that...

...in the yellow pages.

No, I know just the guy who can do this.

-Another friend? -Oh, no, no, no. This guy is no friend.

In fact, we don't even get along.

Well, is he good, Kramer?

Oh, he's the best.