Throughout the series, Joe Flynn's character was named "Captain Wallace B. Binghamton." In the pilot, the sign on his office identified him as "Captain R. F. Binghamton."
In the opening scene, McHale is water skiing behind PT-73. In the close ups he is holding the tow line with one hand and a drink in another. In the long shots-as he crosses the wake he is holding the towline with two hands and but in the next close up, he is back to one hand again.
In the opening scene, McHale is water skiing behind PT-73. In the long shot there is a mountainous shoreline in the background. In the close ups, there is no shoreline - only water.
When Binghamton tells Parker to quit leaning on his desk, Ensign Parker's hat is on the desk. When the camera angle changes, Parker now has his hat under his arm.
When 'Old Lead-bottom' is showing the bases' position on a map, he points to an area about 200 km south of Stewart Island, New Zealand which had no Japanese patrols/occupation and is hardly 'tropical'.