Continuity mistake: When they are in the park, Roger is sent to the phone booth to call Jeannie, but ends up having a conversation with the operator. When Dr. Bellows pulls up, the phone booth is empty. Yet, a few minutes later, Roger is shown still in the phone booth. Because he mentions the original reason for his call, it is clear that this is supposed to be the same conversation.
Revealing mistake: At the beginning of this episode, Major Nelson is about to prune a tree branch in the front yard, but Jeannie blinks it down before he can cut it. The wire that was holding up the branch is visible just above Major Nelson's head. (00:00:05)
Continuity mistake: The final scene of this episode is in Major Nelson's living room. Just after Jeannie blinks in the invisible minister, there is a quick shot of Major Nelson turning his head, but the background is an office at NASA, with green paint and paneling. Major Nelson's home has paneling but no green paint. (00:29:50)
Factual error: In several episodes where Tony Nelson is in a space capsule and communicating with Cape Kennedy personnel via radio, he ends his calls by saying "Over and out." In radio communications, "Over" means "I am done talking. Please respond." "Out" means "I am done talking and I am ending this communication." The two words are used individually, never together.
Continuity mistake: When Tony is next to the record player he knocks a pen down to the floor. But we saw the pen on the floor already, near the giant cat. The position of the eraser on the desk is different in shots with the cat and a real desk, not the giant mockup.
Continuity mistake: As Tony is suiting up for his mission, he's talking to the General (who happens to be the father of his fiancee). The General says that when Tony returns they will have a bachelor party for him. Tony is wearing a wedding ring, in later scenes he has none.