Zulu is advertised on a sign at the International Market Place 12:24 into this episode. Zulu played Kono in the first four seasons of Hawaii Five-O.
The lighthearted music played during this episode was previously used in the two similarly themed episodes featuring Hume Cronyn as Lewis Avery Filer: Over Fifty? Steal (1970) and Odd Man In (1971).
The sign in Japanese seen briefly in front of the hotel translates as: Japanese real estate group -Hawaiian night club tour -see front desk for reservations.
The plot of the show "Over Fifty? Steal" featuring Hume Cronyn is recycled with another actor from the Golden Age Of Hollywood, David Wayne. As in the previous show it is lighthearted and both characters are "gentlemanly" thieves who do not physically harm anyone or anything, and engage in a taunting game with Five-O.