We didn't see Monk's, nor Jerry's apartment.
Ann Morgan Guilbert (Evelyn) also worked with Sandy Baron (Jack) in the TV show Hey, Landlord.
Barney Martin (Morty) and Sandy Baron (Jack) also worked together in the episode "Jerry's Deli" of the TV show Life Goes On.
Jack Klompus first states that the tab for his and his wife's dinner was $19.44, but after discussing the money (after Marty Seinfeld says "make it twenty") he changes it to $19.45
This episode shows Uncle Leo as married to Stella, but no explanation is ever given as to why he is single in later episodes.
You can clearly see part of the set two times in this episode that you're not supposed to see at all. The mistakes occur during the night time. Looking out of the door of the Seinfeld's condo you can see the light reflecting off of the background meaning it's only a painting, and fake. Also note the shadows behind Jack and Jerry during the dinner are one dimensional when there was a railing back there.
Jack: Come on, take the pen!
Jerry: I can't take it.
Jack: Do me a personal favor!
Jerry: No, I'm not…
Jack: Take the pen!
Jerry: I cannot take it!
Jack: Take the pen!
Jerry: Are you sure?
Jack: Positive! Take the pen!
Jerry: Okay. Thank you very much.
Jerry: (to his parents) What is going on in this community? Are you people aware of what's happening? What is driving you to this behavior? Is it the humidity? Is it the Muzak? Is it the white shoes?!
Jerry: (to Elaine) It's one day. Half a day, really. I mean you subtract showers and meals, it's like twenty minutes.
Jerry: I'm sleeping on a loveseat. I got my feet up in the air like I'm in a space capsule!
Jack: Do you think I take everything everybody offers me? You offered me sponge cake yesterday. Did I take it?
Morty: You said you didn't want it!
Jack: Of course I wanted it! I love sponge cake!
Morty: Then who the hell said you couldn't have any? I mean what the hell do I care whether you have sponge cake?
Jack: Because I saw the look on your face last week when I took the scotch tape!
Morty: Ahh! So you got the scotch tape! I've been looking all over for it!
Jack: What happened to you?
Jerry: I got in a fist fight with one of the ladies at the pool.
Helen: It's from scuba diving.
Jack: What's there to see underwater?
Helen: You're going underwater?
Jerry: Yes. Generally that's where scuba diving is done.
Helen: What do you have to go underwater for? What's down there that's so special?
Jerry: I liked it. Should I have said I didn't like it?
Helen: You shouldn't have said anything. What did you expect him to do?
Jerry: He could have said: "Thank you, I like it too" and put it back in his pocket.
Helen: Don't sleep in there. You can you use the bedroom.
Elaine: I can't take your bedroom.
Helen: I'm up at 6 o'clock in the morning.
Elaine: I can't kick you out of your bed.
Helen: We don't even sleep.
Stella: This better be good; I'm missing Golden Girls for this!
Helen: I hate her like poison.
Elaine: Hey! It writes upside-down!
Helen: Why'd you take his pen for?
First appearance by Sandy Baron (Jack). He was in 5 episodes.
According to bonus material on the Season 3 DVD set, Jason Alexander was offended at being excluded from this episode, and insisted that all four main characters should appear in every episode from this point on.
At the ceremony, Larry David can be heard yelling: "Hey Jack let's get started!" and "I'd rather have a bottle of scotch!"
This is the only episode of the series Jason Alexander (George) does not appear. Michael Richards (Kramer) also doesn't appear for the first time. The only other episode of the series he doesn't appear is "The Chinese Restaurant".
Elaine is on muscle relaxers and when introduced to Leo's wife, Stella, Elaine yells out "Stella!" She says it just like they do in Tennessee William's play (and movie) "A Streetcar Named Desire." This is consistent with Elaine's character as we know she is very into theatre.