After Bonnie's male room mate moves out, George arrives at the apartment with the re-gifted label maker. He realizes that all the furniture, etc. belonged to the room mate, and rants about the absence of the velvet couch. Before the rant he wasn't holding anything, but the next camera cut shows him holding a portable TV, as if he had been holding it the whole time. The portable TV, it turns out, belonged to the room mate, and was "lost in the mail" (because all of the room mate's possessions had been boxed and labeled with the label maker's faulty adhesive). Newman shows up with the portable TV at the super bowl (presumably after harvesting it from the Postal System's "lost" and found).
When Kramer's car is getting towed, Jerry yells up to his apartment to warn Kramer. Jerry is wearing a heavy winter coat and scarf indicating cold weather, yet the window to his apartment is wide open.
All the stuff in Bonnie's apartment belonged to Scott and yet it was her apartment. Why it would be her apartment when all the stuff belongs to Him? Obviously it was her apartment first and yet she owned nothing all the time she lived there before Scott moved in. Logically it should have been Scott's apartment.
There's a pipe next to Jerry's apartment door, presumably for water and made of a strong metal. When Newman squeezes through the door against Jerry's attempts to keep him out, he knocks against this pipe a couple times and the pipe easily bends each time.