When Klink and Schultz bump into each other, Klink is wearing his usual trademark monocle, but after he passes and turns to Schultz it's missing for the rest of the scene.
Update: When they bump into each other, the view is a wide shot of the two of them, and Klink has his monocle in his left eye, during which he asks Schultz about Newkirk working inside. There is a cut to a shot of Schultz from over Klink's right shoulder, as Schultz answers Klink's question, saying, "The Englander, Newkirk? Yes." Now cut to a shot of Klink (now without his monocle in his eye) from over Schultz's left shoulder, saying, "Good. That will teach him not to be so disrespectful..." There are a couple more switches back and forth as the conversation continues. After they finish speaking, there is a cut to a wide shot of the two of them again as they salute. Klink is holding his monocle in his left hand. It is entirely plausible that Klink removed his monocle with his left hand during the time Schultz answered the first question about Newkirk and kept the monocle in his left hand for the duration.
Update: When they bump into each other, the view is a wide shot of the two of them, and Klink has his monocle in his left eye, during which he asks Schultz about Newkirk working inside. There is a cut to a shot of Schultz from over Klink's right shoulder, as Schultz answers Klink's question, saying, "The Englander, Newkirk? Yes." Now cut to a shot of Klink (now without his monocle in his eye) from over Schultz's left shoulder, saying, "Good. That will teach him not to be so disrespectful..." There are a couple more switches back and forth as the conversation continues. After they finish speaking, there is a cut to a wide shot of the two of them again as they salute. Klink is holding his monocle in his left hand. It is entirely plausible that Klink removed his monocle with his left hand during the time Schultz answered the first question about Newkirk and kept the monocle in his left hand for the duration.
When Hogan gets a message from London while they are playing volleyball, he and the gang go into the barracks. While going in from the outside view, Carter's collar on his coat is turned up. When the camera changes to inside the barracks, as Carter enters, his collar is turned down.
In a previous episode that also deals with weather and balloons. the camp meteorologist Master Sergeant McMahan is used. He is not used in this episode.
During the introduction, the volleyball net is saggy, and the 'court' (such as it is) is close to the Kommandant's office. When Hogan walks to the barracks, he takes nine steps to get there - assuming a 2 1/2 foot stride, that would be approximately 22 or 23 feet. After the introduction (and the secondary credits), the net is now stretched tight (some of it is wrapped around one of the posts), and the 'court' is much closer to the barracks.
After Klink orders Newkirk to wait on the Sergeants in the club, there is a cut to Newkirk in the background as Schultz is telling about Klink's volleyball serve. After cutting something for some extra wearing a double-V on his arm, Newkirk takes a bite of something and begins chewing. There is a cut to a close-up of Newkirk as he stoops down to look for the balloons in the cabinet, but he is no longer chewing - and no indication that he swallowed whatever it was he was chewing on.
When Col. Klink calls about the weather forecast for his party on Friday night, the barometer forecast was reported to be 29.12 inches. At that reading, there would be a strong rain/snow storm occurring . A more accurate barometer reading would have been 30.12 inches. Also, as Germany was on the Metric system, the report would have been given in millibars, not inches.
During the introduction, Kinchloe signals to Hogan that he has a message from London. At that point, Hogan ends the exercise period. After the introduction (and mini-credits), they are back outside playing volleyball. This could not be a different day or time, as General Burkhalter was preparing to leave as the introduction ended, and did not leave until shortly after the mini-credits. Since Hogan had called an early end to the exercise period, they should not have been out at the volleyball court again, as it would have aroused suspicion about what was happening when they went inside.