Sorry, but I went to a friend's house to listen to the signals directly from the moon.
He was a researcher in broadcast technology, and his hobby was radio astronomy. For the moon landings he'd borrowed a 4m dish and built receivers for both the main spacecraft and the lunar module frequencies.
We heard the (analogue) sound from the orbiter, could detect the telemetry signal, and also the video, but couldn't resolve those.
The signals from the surface were too weak to be intelligible (even NASA couldn't do that) but they were detectable. They were relayed back to earth via the orbiter.
There was only one place those signals could be coming from - the moon. The satellite technology to forge them didn't exist then.
We weren't the only ones to independently pick those signals up, numerous radio amateurs did so as well.
If the Russians, Chinese and French hadn't independently received the signals from the moon they might possibly have said something.
Of course, the Americans might have recorded the whole thing onto video tape (open reels of 2" tape, maximum 1/2 hour per reel, in those days), sent an unmanned craft into lunar orbit, and played the whole thing back. The man in the moon could have changed the tapes for them!
