As in the 7th episode that aired (German Bridge Is Falling Down), Carter is seen wearing a wedding ring.
The prisoners sing the Beer Barrel Polka to mask conversations from Klink's hidden microphones.
The soldier guarding the truck with the heavy water is carrying an American Thompson submachine gun.
In one scene, they convince Klink his office is on fire so we see him gather up his papers and go over to the window to jump - except the location of the window does not match the exterior of his office building setup.
There is a bulletin board in Klink's office.
Klink's living quarters are shown - furniture and set design of his living/dining room and kitchen, none of which are used again.
William Christopher, who played Lt. Donner, is most famous for the role of Father Mulcahy in M*A*S*H.
Unlikely palm trees are visible in the background while the prisoners paint over graffiti.
Klink's office window appears to the left (his right) of his desk in this episode. Later in the series, the window is consistently to Klink's left.
At one point in the epsiode, a road sign is placed to divert the enemy -- the sign displays English words, although the scene takes place in the middle of Germany.
No bulletin board appears behind Klink's desk in this episode.
In an oddity, Carter has to escape a collapsing tunnel and comes up through a foot locker.
Larry Hovis is wearing a wedding ring. In other episodes, his character, Carter is protrayed as single and naive in the ways of women. (Larry Hovis refused to remove his wedding band during filming, and thus, Carter is usually shown wearing gloves.)
Goof: This is a clothing continuity mistake. In the previous wine cellar scene, the sneakers worn by Hogan and Carter have visibly clean and bright White sides and toe cap (even when close to the camera). In this scene, the same sneakers are now Black on the rubber sides and toe cap, instead of White. Even the eyelets are darker in color than in the first scene showing Hogan and Carter leaving the truck.
This episode is the first time Hogan kisses a woman outside of camp. As she enters the wine cellar looking for General Schmidt, Hogan grabs her, turns her towards the wall, and kisses her. Afterwards while staying in the shadows, he pushes her around the door and tells her auf wiedersehen.
She leaves smiling thinking the General kissed her in a very shy and romantic manner.
During WWII the U.S. Army issued Converse Chuck Taylor All Stars sneakers, as well as Pro-Keds. The episode stays true to history, as Hogan and Carter are wearing Black Converse Chuck Taylor All Stars during the mission outside of camp.
During the mission Hogan and Carter wear Black clothing. Black toboggan cap, Black t-shirt, Black pants, Black leather belt, Black socks, and Black sneakers. They also use Black grease on their face and hands.
The sneakers, though, have some White on them and the eyelets are also visible. The rubber sides and toes are White, but have Black grease on them. The grease covers only part of the rubber, though, leaving the White rubber visible in various sections of the shoe.
Colonel Robert Hogan is the first of our heroes ever seen outside of camp on a mission, with Carter being the second.
We see them as they leaves the truck used to pick up the six captured commandos, As Klink inspects each truck leaving the camp, Hogan and Carter hide on the side of the truck rolled up a canvas tarp attached to the truck. Once there they roll down the side of the truck.
This episode is the first time we see a mission outside of camp. While other missions have been outside of camp, they have been presented by word of mouth (e.g. giving orders, reports, etc).
There is no bulletin board in Klink's office.