One of the messages on Phil's old answering machine is from his old friend Ling saying he's about to fly his new helicopter. In "Lifetime Supply", however, Phil gives a shout-out to Ling's first flight after talking about baby Haley, meaning Ling couldn't have left the message before Claire's telling Phil she was pregnant.
Mitchell claimed his near-mint copy of Amazing Spider-Man #3 was worth $5000. In 2014, that issue in NM condition had a book value of $35 000.