In real life, the wife of Howard Morris at that time was Dolores A. Wylie. The name of the older lady holding the party was named Mrs. Wiley.
Jackie Joseph, who played Ramona Ankrum in this episode, was married at the time to Ken Berry. He would later star in Mayberry R.F.D. (1968).
This Ernest T. Bass episode was delayed in filming due to the assassination of United States President John F. Kennedy on November 22 1963.
The title is from the Alan Jay Lerner and Frederick Loewe musical/movie My Fair Lady (1964) which came from the George Bernard Shaw play Pygmalion (1938).
On the night of Ernest T's debut Barney comes over to Andy's house and says he brought the squad car so he can drive them over to Mrs. Wiley's. Actually, the exterior for Mrs. Wiley's house sits right next-door to the Taylor house on the backlot.