Tony says he was seven during the attack of Pearl Harbor, but in the pilot episode he said he was born in 1938, which would make him three.
Tony states that his father was a Lieutenant Commander. Yet the shoulder bars on his naval uniform are those of a Commander.
Some of the images we see the scientists observing are in black and white (probably from stock footage) which makes no sense considering--as they are so inclined to explain to us in this episode--they are apparently watching the real thing.
When the base personnel are watching a captured Tony and Doug at night, the footage they see suddenly changes to daytime footage of the Japanese fleet. Kirk specifically says that it is the fleet heading for Pearl Harbor, so there's every indication they are seeking the fleet at the same time that Tony and Doug are captured.
When Tony and Doug enter the naval communications center for the emotional scene with Tony's dying father, all outside noise of the bombing raid suddenly stops and there's no background noise at all throughout the scene. As soon as they leave the building, the background noise starts up again.
When the Japanese bomb detonates in the naval communications center with Doug & Tony watching, we see stock footage of what looks like a farm building blowing up - a building which bears absolutely no resemblance to the building we saw earlier serving as the naval communications center.
Tasaka: What are you doing here? Who are you?
Doug: We're tourists. Just sightseeing.
Tasaka: Nobody sightsees inside the Japanese consulate.
Tasaka: All this talk of time tunnels and children. Meaningless babble.
Doug: We gave you a glimpse into the future, but you won't accept it because it destroys your dream of world empire.
Jerry: The Japanese are going to attack in less than half an hour. We can't just stand here and let this happen.
Anne: Jerry, it did happen.
Jerry: They're all going to be killed.
Swain: It was in 1941, Jerry.
Jerry: This isn't just a picture. It's a real thing happening, isn't it?
Kirk: That's right. We're looking back into time to what's happening.
Jerry: Then let's try to do something about it.
Kirk: Jerry, some day you'll realize that all men have to live with their past. It can't be changed
Commander Newman: You said you knew me a long time ago. And that you've always remembered.
Tony: My name is... is Tony Newman.
Commander Newman: Tony Newman. I know you. I know you as well as I know my own son.
Tony: (crying) I... I am your son.
Commander Newman: It's good to know my little boy will survive.
Was part of the compilation movie "Kill or Be Killed."