Live television was transmitted from the moon to 3 grounds
stations, two in Australia and one in California. The signal was converted to a
standard broadcast signal and then sent to Houston, via, satellite, landline or
microwave antenna. These graphics show the path of the television feed.
Bottom line is, the video was transmitted to one of the
large dishes that the DSN uses, and then re-broadcast to the world using
standard worldwide broadcasting methods. Specifically, a format was used called
slow scan, which according to Wikipedia:
The SSTV system used in NASA's early Apollo missions
transferred ten frames per second with a resolution of 320 frame lines using
less bandwidth than a normal TV transmission.
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