Did not watch the long documentaries, but the short ones, other than the Star Trek sound trek were about 30 seconds expanded to 6 or more minutes. Really?
Why not just say you don't believe in moon landings? I personally watched the 1969 moon landings, and I know it would have been impossible to fake many aspects, including the USSR not finding out it was a fake, based on radio transmissions alone. I don't know about the rest of them.
I do think Arthur C. Clarke's book "Childhood's End" got it right. Make it to the moon, and no further, humanity loses its fervour to reach the stars.