This is the second time BJ seems to develop feelings for someone other than his wife. The first is in season 5 in the episode "Hanky Panky".
In Klinger's dream sequence the supply room turns into a train and when he gets off the train he is at Tony Paco's restaurant in Toledo, which he references alot. He looks inside and Potter is operating and and motions for him to come here, and he looks down and Potter is operating on him.
Col. Potter appears in five different dreams in this episode, more than any other character. In addition to his own, he also appears in BJ's, Klinger's, Mulcahey's, and Winchester's dreams as well. His appearance in Winchester's dream is cut from the syndicated version of this episode.
In Margaret's dream she is wearing a wedding dress and is on the marriage bed, but she is wearing no wedding band.
Potter told the general that a first lieutenant was withholding the ambulances, but when they were talking to him on the phone, he was wearing a second lieutenant's uniform.
In Charles' dream sequence, in some shots Klinger is wearing earrings, in others he is not.
In redecorating his quarters, Klinger uses a gaudy, bizarre little statue-clock. The statue is identical to (and probably the very same prop as) the statue Archie Bunker brought to his family as an example of "true art" in Episode 4 of Season 4 of All In The Family ("Archie and the Kiss").
The music that Charles asked Klinger to pick up in Seoul was Maurice Ravel's "Piano Concerto for the Left Hand." Additionally, the story that Charles tells is the true story of Paul Wittgenstein, who lost his right hand during World War I yet continued his performing through commissioning works for piano using only the left hand.
The movie shown at the beginning of this episode is the 1942 film Tales of Manhattan starring Charles Boyer. Col. Potter mentions that Boyer is both his and his wife's favorite actor.
In the beginning of the episode, Hawkeye says that he has never come home from a war before, indicating that Korea is the first war he is in. However, in season 2, episode 23 ("Mail Call"), Hawkeye mentions that Korea is his second war. Which is it?
When the Chinese PVA soldier try to use his grenade in OR, it's a US made Mk 2 Grenade. It could have been a captured weapon.
Father Mulcahy uses an expletive in this episode when he tells Hawkeye to get his "damn" foot off of the grenade pin.
Hawkeye's monthly bar tab at the Officer's Club of $37.50 in 1952 dollars would be equivalent to about $288 in 2007 dollars.
This episode is part of a continuing character trait of blue-blooded Protestant Charles and his not overt, but it's there, anti-Catholic prejudice. Winchester mocks Honoria's fiance's Italian heritage with organ grinder jokes among others. In a Christmas episode he tells Father Mulcahy that he never cared for "that crowd in Boston" as they were too religious, a clear reference to Boston's Irish Catholic majority.
Although Rizzo was introduced several episodes ago in "The Yalu Brick Road", here he is simply credited as an anonymous soldier.
This episode marks the one time return of John Orchard.
After being forced to give up his canvas bathtub last season in "None Like it Hot", Hawkeye managed to acquire another one.
When Klinger mentions "Fifteen ways to a better vocabulary", he was probably meant to say days, not ways. Charles seems to confirm this by saying that he is "on day fourteen". A more recent title is Thirty Days to a More Powerful Vocabulary (By Funk, not Wagnall).
The time seems to be off from the clock on the screen. In the operating room Hawkeye said that he's had his hand in the wounded soldier's chest for ten minutes. The clock only said 1436.
This episode is nearly identical to the Season 4 episode "The Bus" in which Hawkeye, B.J., Col. Potter, Frank and Radar get lost on the way back to camp and and run across a Korean soldier who wants to surrender. Soon Tek Oh plays the surrendering soldier in both episodes!