When Park Sung uses the Korean-English dictionary to find the word "terrific," he turns close to the end of the dictionary. The Korean word for "terrific," however, is "hullyunghan," which would therefore be closer to the middle.
When Margaret is talking to BJ and Hawkeye about Bud, her fingernails are roughly 1/2 inch long. No nurse, especially a head nurse, would have fingernails that long.
After Margaret gets the eye drops from the doctor she runs outside because of wounded arriving in camp. As she exits the hospital the walls of the studio can be seen above the hospital's "roof."
In this episode Col. Potter has Klinger read a letter to him because his glasses are broken. In Episode 4.14 "Mail Call, Again" though, Potter was able to read a letter without his glasses with very little trouble.