Betty notes that Hawaii is the 50th state to be admitted to the Union in the USA. The original broadcast of this episode occurred only about 6 months after the formal admission of Hawaii as the 50th state.
Marion Ross, who plays Miss Abrams, would go on to become a significant part of her own 50s family in the long-running 1970s sitcom Happy Days (1974), where she played the part of Mrs. Cunningham.