This is the series' first appearance of the Batcave.
The parallel counterpart to The Atom's second line is a reference to Lloyd Bentsen's infamous retort to Dan Quayle in the 1988 United States vice presidential debate after comparing himself to 35th president John F. Kennedy:
"I knew Jack Kennedy. Jack Kennedy was a friend of mine. Senator, you're no Jack Kennedy."
"I knew Jack Kennedy. Jack Kennedy was a friend of mine. Senator, you're no Jack Kennedy."