This is the only episode in which a character's age is directly mentioned: Jerry says he's 36.
This episode was originally planned to air in season 2. Before this episode was broadcast, Jerry came on and did a piece explaining that the episode takes place before George lost his job and that he wanted to "let you know, that we know, you know."
George: You got aloe? I love aloe.
Party Guest: So what do you do?
Jerry: I'm a comedian.
Party Guest: Are you? Let me ask you something. Where do you get your material?
Jerry: I hear a voice.
Party Guest: What kind of voice?
Jerry: A man's voice, but he speaks in German so I have to get a translator.
Party Guest: How come you keep tapping your head?
Jerry: It's a nervous tic. I'm on L-Dopa.
George: Every day is a date.
Jerry: That's one of Dante's nine stages of hell, isn't it?
Jerry: Listen, George is going home with this Ava from his office.
Elaine: Really? Huh. What a world. So we can go now?
Jerry: Uh, no, he's taking the car.
Elaine: Well, what are we gonna do for a ride?
Jerry: I don't know.
Elaine: You don't know?
Jerry: Maybe Kramer can come pick us up.
Elaine: Oh great, oh, this is great. How could you let him take the car?
Jerry: There's nothing I could do, it's part of the code!