Trivia: There were no American planes shot down over the Sea of Japan during the Korean conflict. It is rumoured that producer/director Larry Gelbart knew that, but wrote Henry Blake's death scene as he was very unhappy with the way Mclean Stevenson had left the show, and was determined to make it clear that there was no way he would be coming back.
Trivia: In this episode, Hawkeye is trying to find out what "B.J." stands for. Despite all of his efforts, nothing works. This was based on Johnny Cash. Upon his birth, his mom wanted to name him 'John', and his dad preferred 'Ray'. When he enlisted in the Air Force, they wouldn't accept initials as a name, so he chose 'John R. Cash'.
As You Were - S2-E20
Trivia: When Radar was on the phone saying he was an officer, he answered "Uh, well, I'm, uh, nineteen." I know it was for the show, but when this episode aired in 1974, Gary Burghoff was 31 years old at the time.
Hot Lips and Empty Arms - S2-E14
Trivia: In the O.R, a stand with a bottle of blood is knocked down and breaks, losing the blood. This quick shot of the event is reused from S2: E3 "Radar's Report".
Trivia: Charles is implied to be a bit older than Hawkeye, BJ, and Klinger and is older than Radar by over a decade. In real life. David Ogden Stiers (Charles) and Gary Burghoff (Radar) were the two youngest of the main cast members. They were born less than 7 months apart.
Trivia: After Harry Morgan joined the cast as Col. Sherman T. Potter, the character is shown numerous times painting portraits of the main characters. However, he never painted them. The studio prop master farmed out the work to local talent who was happy for the work. None of those artists have been named.
Suggested correction: This entry is contradictory with another Trivia item which states that Harry Morgan, being an amateur painter in real life, did indeed produce at least some of the paintings.
Trivia: The hat that Alan Alda wears in the opening credits is the same as the one Donald Sutherland wore in the movie.
Deal Me Out - S2-E13
Trivia: Assuming he was home when the Conscription Officers came for him, Klinger would have travelled 561.3 miles from his home in Toledo, Ohio, to Grand Central Station in New York, NY.
Trivia: Frank says "Give me a man when he's 28, and he's mine for life." When this episode aired, Mike Farrell (Capt. B.J. Hunnicutt) was 36.
Trivia: In this episode, the guest is Dennis Dugan playing Bob Wilson. He guest starred in Season 3 Episode 20 "Love and Marriage" as Private Danny McShane.