This episode was viewed by 19.2 million people and was ranked #8 for the week.
The names of the two other birthday kids at Dorothy's party at Mr. Ha-Ha's are Bobby Spina and Jeannie Taylor. Robert Spina and Jeannie Taylor were the names of two crew members who worked on the series.
These are the first appearances of Sid Melton and Lyn Greene as Salvador "Sal" Petrillo and the young Dorothy Zbornak, respectively. This is also the first episode to flash back to Dorothy and Sophia's past in Brooklyn.
It is mentioned that Sophia was born in 1906. However, in the earlier episode "And Then There Was One", Sophia says she's been walking since 1904.