This episode was one of only four on the eight "complete season" DVD sets that do not have a laugh track. All four occur in the Fall of season 4 and were presumably broadcast without laugh tracks.
This marks the first episode Barney is referred to as "Bernard P. Fife." In season 1, episode 25 "A Plaque for Mayberry," Andy says Barney's middle name is "Oliver." In season 3, episode 19 "Class Reunion," Barney's middle name is "Milton."
This episode originally aired the same week that President John F. Kennedy was assassinated in Dallas on November 22, 1963.
Once again the last name Beasley is used, Andy mentions he should sent a copy of Opie's report card to Edgar Beasley. Juanita Beasley at the diner, Goober Beasley before he was Pyle, and Andrew Beasley was mentioned by Floyd in The Case of The Punch in The Nose, are other times the name Beasley is used. Also Lorraine Beasley in A Wife for Andy and Virginia Beasley
Opie runs away and finally tells Andy that he was leaving to join the navy. Years later, Ron Howard leaves the series Happy Days by having his character Richie Cunningham join the navy. Still years later, Jim Carrey as The Grinch does a parody of Ron Howard wearing a navy ball cap as Ron Howard was also known to do.