Signs in Frank's billiard room:
If they don't have a pool hall in heaven, then I'm not goin'
Pool is not a matter of life and death. It is much more important than that.
The life of the Pool Hustler is Hell... But somebody's got to do it.
Professional & Amateur Hustlers
Keep your butt and butts off the table!
Cold Beer Always, Snacks Sometimes
Sally mentions that the BBQ sauce she brought him is the pride of Memphis. If you look closely, the box says it is Bull's-eye BBQ Sauce, a product of Kraft Foods, a company founded in Chicago, IL.
After seeing George with the doll in Monk's, Deena remarks that he should be in a "sanitarium". She meant "asylum" (a common error). A sanitarium is a convalescent hospital for patients recovering from physical illness, such as tuberculosis, whereas an asylum is for the treatment of mental illness.
There is also an episode called "The Doll" in Curb Your Enthusiasm, which is another show by Larry David on HBO.
After Elaine gets the third tenor's autograph in the dressing room of "The Charles Grodin Show," she tries to make out the last name by his signature. But if you look closely at the poster when The Maestro opens it up on his desk in the next scene, the last names of all 3 tenors are on the top part of the poster.
When we see Kramer, the Maestro and Frank playing pool, we see Kramer wearing boxer shorts. However, there was an episode in which Kramer had fertility problems and said that he hated boxers so much he rather use nothing under his pants.
In reference to the above, straight pool is certainly played that way. You may be thinking of 8-ball, perhaps the most commonly played game. Feel free to check out http://www.pitt.edu/~billiard/rules/straight.html for the rules to straight pool.
When Kramer and Frank are playing pool, Kramer asks to play straight pool, later on Kramer is seen sinking a striped ball then a coloured ball, which is not how you play "straight pool".
(George is showing Jerry the doll that looks like his mother.)
George: You see? You see?!
Jerry: (with a disgusted face) Well, it doesn't look exactly like her.
George: Jerry, come on. If my mother keeps shrinking, this is exactly what she's gonna look like in ten years!
Jerry: Why don't you just get rid of it, then?
George: I tried, I almost threw it down the incinerator, but I couldn't do it, the guilt was overwhelming. Susan's so attached to this thing.
Jerry: (as George is leaving with the doll) Well, where are you going? Don't take your dolly and go home.
(George is imagining the doll yelling at him like his mother)
Doll: Georgie, don't eat with your hands. Why do you eat so fast? You can't even taste it!
George: Don't tell me how to eat!
Doll: Still wearing that shirt? You've had it for five years already. Why don't you buy a new shirt?
George: Because I like this one!
(Referring to the picture of the man in Tuscany named Costanza.)
The Maestro: ...he has something of a reputation of the town idiot.
Frank Costanza: I STILL say we're related.
Kramer: Jerry, why don't you do a bit on Styrofoam?
Jerry: Like what?
Kramer: What is all this stuff? Why do need this stuff? And why…do they make them so small?
Jerry: Where's the punch line?
Kramer: It's all attitude (makes a funny face)
Jerry: What the hell are you doing?!
Kramer: I'm salvaging the sauce. What's the matter with you?
Kramer: Hey, the baton! (lines up shot) I've got a hunch fat man, I can't lose.
Frank: We call this, "The place to be."
George: I'm on no sleep!
Jerry would say this same phrase in "The Chicken Roaster" after spending the night in Kramer's apartment with the blinding chicken roaster sign.
José Carreras is the "other guy."
When Frank travels to Tuscany to visit the man he believes to be his relative, the sign in the background which says "Costanza" has "Import/Export" underneath the name. This appears to be an allusion to previous episodes of the show such as "The Cadillac (2)" and "The Stakeout", in which George uses the job title of importer/exporter for several complex lies.
Kramer: "I've got a hunch, fat man. I can't lose."
When Kramer picks up the baton to use as a cuestick, he says this line, a shortened version of "You know, I got a hunch, fat man. I got a hunch that it's me from
here on in. One ball, corner pocket. I mean, that ever happen to you?"; a line delivered by Paul Newman to Jackie Gleason in the 1961 film "The Hustler."
LH: "The Three Tenors"
The Three Tenors are Luciano Pavarotti, Placido Domingo and Jose Carreras