My Master, the Weakling - S3-E5
Other mistake: About 3 minutes into the show, Don Rickles goes around a corner to get some equipment but you can see his left arm at the corner while he's waiting for his spot to come back into the scene.
Other mistake: When Don and Dr Smith are stealing Sesmar's control unit, look closely at the base of the electronic arch - Raddion is hidden from sight but the careful eye will see his golden feet.
Other mistake: When the phone pole was installed with a "butt set" to talk with, they used it upside down for a long time. Someone must have brought it to the director, because they finally corrected the problem.
Other mistake: At the end, when Siegfried is about to shoot Max, if you look in the chambers of his gun, there's no bullets in there. So Siegfried is going to kill Max with a puff of air.
Other mistake: As LeBeau is being interrogated, on the barometer behind Schultz you can make out the word "fair." What is a barometer labeled in English doing in a German counter-intelligence headquarters?
Urutora sakusen dai ichi gô - S1-E2
Other mistake: When Bemular holds submarine 516 in its mouth, submarine 516 becomes submarine 16. (00:18:40)