Have there been any segments which were first missing and then added back? I know that the one on Aimee Willard was like this.

That is a good question. I am not aware of any, but if there have been I will make a note of that as I work on the database as the discrepancy would show up when I go back through the remix episodes.

The one about the French pilots in WWII. I don't think that was originally part of the streaming until much later.