Betty Conner, who played Gidget's sister Anne, received a makeover after episode one. In the first episode, she was a normal-looking brunette. Beginning in episode 2, her hair was bleached blonde and she wore different makeup.
The interior sets and exterior residents were modified and changed after episode 1. The I Dream of Jeannie (1965) house was featured as the Lawrence home in the pilot and then moved down the street utilizing the home next to the Bewitched (1964) house on the Screen Gems (later Columbia and then eventually Warner Brothers studio back lot). This home was also featured in Lethal Weapon (1987) and its sequels.
The Lawrence house exterior was used as the (George) Baxter house on the TV series "Hazel". The kitchen decor from the Baxter house was kept intact while the rest of the house's interior decor was changed.
Adjusted for inflation, the $3.75 Professor Lawrence wins from John would equal approximately $36 in the year 2023.