This is the second time that Arnold teamed up with his grandma to solve a problem. The first time they worked together was in Season 1 when they rescue Lockjaw in the episode "Field Trip".
The Jolly Olly Man mentions actress Hedy Lamarr, who was also mentioned by Phil in previous episodes.
The music that plays when Ivana first appears is also used for the credits.
Cultural References[]
Packard was a real auto manufacturer and produced various luxury cars until it folded in 1958. Nickelodeon would normally be restricted against showing real-world car marques on its shows, but as Packard no longer exists, this is an exception.
The word puzzle on the lid of the Yahoo! soda bottle is called a Rebus puzzle.
When Grandma misses hitting the fly, she exclaims "Nertz!" which is also the name of a card game created in the 1890s.
Grandma is playing the role of a hardboiled detective. She also calls herself "Spade" as a reference to fictional private detective Sam Spade and calls Arnold "Marlowe" as a reference to fictional detective Philip Marlowe.
"Ivana Davancevic" is an allusion to crew member and writers' assistant Danica Ivancevic.
Grandma's line "here's looking up your own address" is a parody of the line "here's looking at you" from the film Casablanca.
The jazz DJ says, "we got more smiles from Miles," referring to jazz musician Miles Davis.
Marv, the owner of the scarf store, is modeled after actor Peter Lorre.
This is the second time that Hey Arnold! has referenced a famous horror movie actor, the first time being in "Sid the Vampire Slayer".
Grandpa Phil opening the door and saying "Here's grandpa!" was a reference to the movie The Shining, when Jack Torrance said "Here's Johnny!".
The address of Marv's Scarves, 32 Hammett Ave, is a reference to detective author Dashiell Hammett who created the character of Sam Spade.
The address Marv gives, 1941 Chandler Street, is a reference to detective author Raymond Chandler who created the character of Philip Marlowe.
