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.
Everybody Loves a Snowman - S3-E14
Continuity mistake: Carter and Newkirk have just taken the escapees down the tree trunk to the tunnels. When they go to open it, they clear off the snow to open it. When the shot goes to a German soldier that was chasing them, the phony stump is suddenly covered over again. It would still have been visible, having just been exposed.
Continuity mistake: After Hogan, LeBeau, and Newkirk leave, Carter is sitting, holding the glass with both hands. After the cut, he's holding the glass in his right hand only.
Two Nazis for the Price of One - S3-E17
Continuity mistake: Freitag is shot at night, but when Hogan goes outside and talks to his men it's daytime.
Is There a Doctor in the House? - S3-E18
Continuity mistake: Hogan pulls a container with a red cross out of the drop box and opens it. It is labeled "penicillin" inside and contains among others several vials of clear liquid. Back in the camp, Hogan gives a box with a red cross on top to Kinchloe, saying "here's the penicillin." It is a completely different box.
Continuity mistake: After getting Crittendon to turn around, Hogan grabs his hat with his right hand. When the camera looks at Hogan, he's pulling his left hand back, holding his hat.
Continuity mistake: When Hogan is by the truck, Newkirk responds to his question about packages. Crittendon has his swagger stick under his arm, then it's suddenly in front if him in his hands.
Continuity mistake: In Hogan's quarters, as he and Critendon are talking, his arms are by his sides, and suddenly crossed. As Hogan goes to get his hat off Critendon's sword, his right hand is shown, then after the angle changes, his left hand draws back with the hat, and his right comes up to grab it.
Continuity mistake: When Klink goes to leave his quarters to meet the plane, he doesn't have his familiar outer coat in his arm or on him. When he gets to the rendezvous point, he has it on.
Axis Annie - S3-E23
Continuity mistake: As Newkirk is talking to Axis Annie, his arms are crossed. They are uncrossed a second later without moving.
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