Opens with the quote, "How the silly frog does talk! He can be no companion to any human being." This is from a Grimm Brothers fairy tale, The Frog King.
The batrachotoxin remedy that Bella Turner drank during the episode was actually strawberry milk.
1 st appearance of Prince Kenneth. Prince Kenneth has the surname Bowes - Lyon . The Bowes - Lyon family are the Earls of Strathmore and Kinghorne. Their ancestral home is Glamis Castle in Scotland. Queen Elizabeth the Queen mother before her marriage to George Windsor who became King George Vl in 1936 was a member of the Bowes -Lyon family. Therefore Kenneth must be a relative of the current Queen of the United Kingdom and Northern Ireland Queen Elizabeth ll.
Bella's apartment number (416) is a reference to the episode number.
A restaurant in the Pearl District is referenced at the end of the episode, making it back-to-back episodes that food establishments in that district were used. "Olive or Twist" was used in "Double Date".