The Gymnast - S6-E6
Jerry: So let me get this straight. You find yourself in the kitchen. You see an eclair, in the receptacle, and you think to yourself...what the hell? I'll just eat some trash.
George: No, no, no, no, no. It was not trash.
Jerry: Was it in the trash?
George: Yes.
Jerry: Then it was trash.
George: But it wasn't down in, it was sorta...on top.
Jerry: But it was in the cylinder.
George: Above the rim.
Jerry: Adjacent to refuse is refuse.
George: It was on a magazine, and it still had the doily on.
Jerry: Was it eaten?
George: One little bite.
Jerry: Well, that's garbage.
George: But I know who took the bite. It was her aunt.
Jerry: Well, you my friend, have crossed the line that divides man and bum. You are now a bum.
The Gymnast - S6-E6
Mr. Pitt: I have been accused of wrongdoing, but these false accusations will not deter us. We will annex Poland by the spring at any cost! And, our stocks will rise high!
Chosen answer: George does mention his brother in the episode "The Parking Space". They actually really never mention anything that contradicts the fact he had a brother though, it just isn't mentioned.