Continuity mistake: As Schultz is going to get checked out, Hogan and the boys stop him, and Hogan feels Schultz's neck. Schultz's arms are by his sides, then after the angle change, they're by his hips. Also, there's two men walking behind the group that weren't there a second before.
Continuity mistake: When Klink is talking with the doctor, he sits while reading the report. One moment, he's holding the folder, the next, his hands are folded without having dropped the folder.
Continuity mistake: As Schultz comes in, Klink has his left hand on his forehead. As Schultz is talking, Klink starts to raise his head, his hand very close to his forehead. When the camera cuts to a close up, his hand is below chin level.
The Most Escape-Proof Camp I've Ever Escaped From - S2-E26
Continuity mistake: In the beginning, Carter's hair has been buzz cut. A few minutes later, it's back to regular length.
Continuity mistake: When Kinch raises the binoculars to look at The Tower, the neck strap is crossed in an "X" on his chest. When he puts them down, the strap is straightened.
Colonel Klink's Secret Weapon - S2-E28
Continuity mistake: During the inspector general's visit, Le Beau and Newark fall out with switched hats (i.e. Newark is wearing Le Beau's red hat and vice versa). In the next shot when in formation, they are wearing their own hats. (00:21:00 - 00:22:00)
Colonel Klink's Secret Weapon - S2-E28
Continuity mistake: When Franks turns in his report to be signed, Klink said "Kommandant's efficiency reports are six weeks behind." When he talks to Hogan later to get rid of Franks, he said the reports were six months behind.
The Top Secret Top Coat - S2-E29
Continuity mistake: When Hogan and company are getting ready to listen to the sock from "Aunt Alice" they plug the coffee pot up to their recorder. As they do so, the light that indicates power is lit up, but then Lebeau plugs in the power cord.
Some of Their Planes Are Missing - S3-E2
Continuity mistake: Though six planes were supposed to be destroyed, only two were visible or bombed. At the fade out, the two planes blowing up were a reversed, re-used shot.
Some of Their Planes Are Missing - S3-E2
Continuity mistake: After getting out of the tunnel, Hogan, Carter, and Le Beau are in a truck travelling to the meeting. Hogan in in the right seat, Carter on the left. But as the pull up to the meeting, they have switched sides, Hogan on the left and Carter on the right.
Some of Their Planes Are Missing - S3-E2
Continuity mistake: In the tunnel, Le Beau picks up some darts and tosses one with green feathers at the target. When the camera looks at the target (a picture of Hitler) a blue winged dart hits the board.
Some of Their Planes Are Missing - S3-E2
Continuity mistake: As the boys trade candy bars and Schultz reaches in, Hogan stops everything and his left hand is up with a bar in it, his right hand empty. A second later, his left is down, and the bar has jumped to his right hand.
How to Win Friends and Influence Nazis - S3-E7
Continuity mistake: In the long shot of the hotel room, the boys are lulling Schultz to get him to sleep. In the long shot, his right hand is holding the rifle. In the close up, it's barely draped over the rifle.
Continuity mistake: As Stoffel sets off the smoke bombs, the first one lands by a set of silver cans by a crate. The second one lands in almost the same spot, but the first charge is gone.
Is General Hammerschlag Burning? - S3-E11
Continuity mistake: As Hogan and Kinch walk into the club, Hogan is holding the mop up. A second later, it's on the floor, with his hand on top.
An Evening of Generals - S3-E13
Continuity mistake: In Klink's office, the lower corner of the poster Hogan holds up alternates between being over the right side of his chest, to being tucked under, and back.
An Evening of Generals - S3-E13
Continuity mistake: In the barracks, after Hogan asks Newkirk about volunteering, the coffee cup Newkirk has is held with his left hand fingers in the handle. After the angle cut, the cup is in his hand with the handle toward the camera.
An Evening of Generals - S3-E13
Continuity mistake: As Klink is listening to Burkhalter, he is gesturing with a blue pencil. A second later, it's yellow.
An Evening of Generals - S3-E13
Continuity mistake: As Klink is listening to Burkhalter, his right hand is on the desk. A second later, it's at the top of his chest with his left, holding a pencil.
Answer: Nimrod's actual identity was never revealed in the series. It was only known that he was a British intelligence agent. Nimrod was not Colonel Klink. Hogan had only implied it was him as a ruse to get Klink returned as camp commandant, not wanting him replaced by someone more competent who would impede the Heroes war activities. The term "nimrod" is also slang for a nerdy, doofus type of person, though it's unclear why that was his code name.
raywest ★
"Nimrod" is originally a king and hero mentioned in the Tanach and taken into the Bible and the Koran. His name is often used in the sense of "stalker," "hunter," and sometimes figuratively as "womanizer" as in "hunter of women." I've never seen it used to denote a nerdy person, and although I cannot disprove that connotation, I think given his role, the traditional meaning is more likely the intended one.
Doc ★
It's widespread enough that Wikipedia has an entire section on it: https://en.wikipedia.org/wiki/Nimrod#In_popular_culture