The way you know the manned moon landings happened is by the many ham radio operators internationally who had dishes they pointed in the right direction.
Those things have beamwidths of a degree. Or less. Nothing off to the side gets heard. There are thousands of these guys who heard the show personally, without involvement of NBC, ABC or CBS. Or BBC. Or anyone else. This does not mean every ham had a dish like that. Thousands did. Globally.
Ham radio operators heard the propaganda broadcasts.
Lol.