This was Jack Larson's final non-"Superman" related acting role until Quickie (2010) 45 years later.
This was the first color episode.
The "surprise, surprise, surprise" scene near the end is the scene shown in Forrest Gump (1994) when Forrest is watching it on TV just before he learns ping-pong. Only the background music is different than what is heard in the film.
Oddly, in Officer Candidate Gomer Pyle (1965) (Season 1), Gomer passes the Officer Examination, being selected for officer training.
This was Jack Larson's only appearance as Carter's corporal.