Starring: Ron Howard, Don Knotts, Andy Griffith, Frances Bavier
Deliberate mistake: Luke's dog in the episode is the same dog used in other episodes involving a dog in the plot.
Other mistake: When Barney is ready to pour the plaster cast into the shoe prints, there are only a few prints on the ground. There should be a continuous set of prints from the barn door to wherever.
Opie's Group - S8-E9
Andy: Clara, sometimes a parent can't see what he should do, and sometimes it takes a person from the outside to show him. And I'd like to thank you.
Clara: Groovy.
My Fair Ernest T. Bass - S4-E17
Trivia: At different points during this episode both Barney and Andy make the exact same comment, "If you wrote this into a play nobody'd believe it." This episode is based on My Fair Lady, which in turn is based on Pygmalion.
Question: Who was Ralph Henderson?
Answer: In S3 x E11 Convicts-at-Large, there is a character named Big Maude Tyler, who is the leader of three female escaped convicts. Andy listens to the radio as the news announcer says that Big Maude's aliases include Clarice or Annabelle Tyler and also one amusingly named Ralph Henderson.
Super Grover ★