A soldier arrives at the camp and introduces himself as Sergeant Attias of the Turkish Brigade, but he is wearing a corporal's uniform.
Once again, we see a character (in this case, Hawkeye) breakfasting on a fresh, unpowdered egg without fanfare.
As Klinger is dismounting his pole, a ladder is quickly pulled out of the shot by stage crew. He is supposedly climbing down on a rope.
During the scene where the company is watching the movie in the mess tent, the film projector repeatedly breaks down. Radar does an imitation of John Wayne from the movie Mclintock. This movie came out in 1963. This is 10 years after the end of the Korean War.
In this episode Col Potter lives in Nebraska, but usually he lives in Missouri.
Shouldn't the jeep parts and motor oil make Klinger very sick rather than just giving him a bad stomach ache?
When Hawkeye starts the crossword puzzle he and BJ complete "1 across" as "CHAP" and "1 down" as "CAST". Later in surgery we get a look at the puzzle over Father Mulcahy's shoulder and the "1 across" and "1 down" words are not filled in.
When the doctors take a break from their "Surgical Glove Volleyball" to get a ruling from Frank, Hawkeye is the one left holding the glove, but when they stop talking to Frank and start playing again, B.J. is the one holding the glove.
Father Mulcahy calls Hawkeye a "good Christian" in this episode (for flushing out the horse), but in Season 4's "Dear Peggy", he refers to Hawkeye as a "crazy agnostic" in a conversation with B.J.
Goof: When Radar is trying to reach BJ's father-in-law on the phone, he spells his last name, Hayden, "H-A-Y, D-E-N," and Hawkeye sings, "M-O-U-S-E," the theme song from The Mickey Mouse Club television show. This is an anachronism - the Korean War was fought from 1950 to 1953, but the Mickey Mouse Club didn't appear on TV until 1955, so the song hadn't yet been written.
Colonel Potter looks at Klinger's letter and says, "I don't read Gypsy." The actual word for the Gypsy language is Romani. Whether Klinger can actually write in this language is unclear. He may have just written a letter in gibberish and figured nobody in the camp could tell the difference.
While in Potter's office, we see several of his paintings on the wall, including one of Hawkeye. However, it will not be until the following episode, "Hawkeye Get Your Gun", that Potter paints Hawkeye's portrait.
Nitpicks: Consider the only "air raid" 4077th every got was when "5'o clock Charlie" with very bad aim came in season 2, and even then he was aiming for the ammo dump near 4077th, not the MASH unit itself. It's quite odd that Frank is digging a foxhole (according to him, one of several) for that. And also why didn't him order enlist men to do that (he never had a problem ordering them around before)? It's also odd that person like Frank Burns didn't know or didn't believe the propaganda that US air force had air superiority over Korea. Historically Communist forces never really had air superiority over Korea. Even in the contested areas, Communist air forces (North Korean, Chinese and Soviet) were mostly Mig-15's and other fighters. They never really had bombers that could do "Air raid" on American side.
In the scene where he's on guard duty, Klinger sings "You're The Tops". Hawkeye sings the same song in the episode "The Joker Is Wild" when he loses a bet to B.J.
With the exception of Mary Jo Catlett, none of the actresses who played nurses in this episode (Linda Kelsey, Carol Locatell, Patricia Sturgis) ever appeared again on M*A*S*H, either as nurses or any other character (exception being "Our Finest Hour", when the clip of Margaret expressing her feelings from this episode was re-played). Catlett also appears in "The More I See You" (season 4 ep 22).
Radar's I.D. number is the same number of a different soldier in the season three episode 'Life with Father'.
When they made Radar a corporal again, why didn't they make him a sergeant instead? He deserved to be at least a three striper.
After Radar has read Hawkeye his letter, Major Burns comes in whistling. The song he whistles is 'Three Blind Mice'.
Hawkeye explains to BJ how his temporary blindness has heightened his other senses, saying "Last night I spent two incredible hours listening to that rainstorm." A few quick looks around the compound reveal no evidence of a heavy rain (puddles, mud, etc.).
Margaret states that by marrying Donald, she can have her Army career plus what "every" woman wants--a home, children, a washer-dryer. In a later episode, when she fears that she is pregnant, she states that pregnancy means an automatic discharge, so she could not possibly have children and an Army career as well.