Joe Flynn and Tim Conway were added to the opening credits in season two. In the syndicated version of this episode, the opening credits are from season one. Because of this revision, the incorrect scriptwriters may have been credited.
At one point in the story, Captain Binghamton (portrayed by Joe Flynn) jumps overboard, and his hat flies off his head. Flynn's stunt double has a prominent bald spot; however, Joe Flynn has a full head of hair.
While McHale and the crew are planning Binghamton's birthday Tinker is shown apparently painting the PT73 as was ordered but his paint brush has no paint on it. He is merely brushing a dry brush on it.