At just after 10 minutes into the episode Cark Kent hears the burglar alarm and leaves the office with no hat in his hands or on his head, yet in the following shot he takes off his hat and opens the door to the closet to change into Superman.
The longer output tape McCoy tears off the computer (Mr. Kelso) is suddenly shorter when Nosey starts reading it.
When Superman lands in the alley and pushes the large truck out of the way, the truck moves but the front wheel does not turn.
When reading the output tape produced by the computer (Mr. Kelso), about 12 minutes into the episode, the two crooks are reading it from right to left instead of left to right. This makes no sense in the English language. (Whenever the camera is in position to read the tape, however, in earlier scenes, it always reads from left to right, as it should.)
As Superman is flying towards the end of the show going from left to right, the wind is blowing his hair and the background of buildings is moving behind him. However, the background stops moving, but the wind is still blowing in his hair implying that he is still flying forward.