The red headed man at the bowling alley changes his voice in one scene.
In this episode, Wilma hates opera, while in the Flintstone Flyer, she was excited about going.
This is the only episode in which Betty is referred to by her full first name, Elizabeth.
Barney: Get it? When Fred opens the door...Kaboink! The rock lands right on his noggin.
Wilma: I suppose it has to be done, but is it necessary to use such a hard rock?
Barney: Fredrick has a hard head, you know.
Frederick: How about reading Shelley's sonnets to you again?
Wilma: I've heard Ode to a Lark so many times I could build a nest and lay eggs.
Betty: What's wrong with him, Wilma?
Wilma: I...I don't know, but he'll snap out of it in a minute.
Fred: Ah, there's my sweet, adorable wife looking charming as usual. How are you my dear?
Wilma: See? He's all right, he knows me.
Betty: Are you kidding?
Fred: And there's Elizabeth, Bernard's wife, a vision of loveliness, a delight to the eye.
Betty: (giggling) Oh yeah, he's all right. He knows me, too.
Betty: Why, he's a veterinarian.
Wilma: I must've gotten the wrong list of doctors.
Barney: Oh, I don't know, Fred eats like a horse.
Betty: What happened to Fred?
Barney: Well, I know this sounds stupid, but Fred hit himself on the head with a bottle. He knocked himself cold.
Betty: Oh, dear. I'd hate to tell that story to Wilma.
Barney: What do you mean, Betty?
Betty: Well, I mean...I mean, think how embarrassed Fred would feel if Wilma found out.
Barney: Well...Uh...Maybe we can sneak him into his house and put him on his sofa and she'll think he's asleep.
Betty: Sneak him into the house? Well, that's like sneaking an elephant into a telephone booth.
Wilma: Fred's a diamond in the rough, but even diamonds can stand polishing.
Betty: (after hearing a strange nasty sound) Some poor Mastodon is caught in the tar pit. They ought to put a fence around the tar pit.
Barney: That's not a Mastodon. That's Fred singing.
Betty: They ought to put the fence around him.
Fred: (angry) We are finished. I'm returning your lawn mower, your rake, your hedge shears and your hose.
Barney: My power tools too?
Fred: Yes, your power tools too.
Barney: Gee, this is serious. You never returned my power tools before.
Fred: (angry) I'll give him a piece of my mind.
Wilma: Not to big a piece, Fred. You haven't any to spare.