Even if he had been promoted, Radar would not wear a medical insignia.
Potter notes that Radar "skipped over sergeant" to be a 2nd Lt. However, there were multiple grades of sergeant he would have had tp skip over.
Potter notes that Radar "skipped over sergeant" to be a 2nd Lt. However, there were multiple grades of sergeant he would have had to skip over.
2nd Lieutenants wear Gold Bars not Silver.
When Margaret first uses her whip, she slaps it down on various objects but a crack of a whip is heard. Whip cracks are heard when a whip is swung forward then immediately stopped - it wouldn't be heard when slapping it down onto a surface.
In a montage of salutes Radar is seen walking towards the Officers' Mess.
The 4077 has never shown an Officers' Mess, just a combined mess hall.
Although Radar's promotion is essentially bogus, a promotion of that kind would, in all likelihood, have been accompanied by a transfer. Radar did not move into a position previously help by someone else at the 4077th, so one wouldn't have been created to accommodate his promotion, and Radar's background as a company clerk would not lend itself to the type of officer (medical) needed at a MASH.
When Potter informs Hawkeye and BJ about Radar's promotion, the two are inexplicably walking toward a row of bushes.
Frank looks at Radar's left collar, which only has a medical insignia, and pronounces "that's blasphemy." Radar's right collar and cap have a 2nd Lt. bar; Frank was not looking at either.
When BJ joked that Col. Potter's horse might be up for a promotion, Hawkeye quipped "From gelding to stud." Sofie (Col. Potter's horse) is a mare.