This NOS broadcast with Apollo 11 was live recorded at someone's home with a video recorder. As NOS has reused their own tapes, this is the only reason the broadcast still exists today.
This was 1969. Betamax wasn't released until 1975, and VHS in 1976. Before that, there was the short-lived "Cartrivision", but even that didn't come out until 1972. What kind of system did someone have at home to record this on?
You are looking at devices like these: http://www.labguysworld.com/VTR-Museum_001.htm
Very expensive, but affordable for a well established amateur.
Indeed. Don't fall into the trap of assuming that VHS and Betamax, which were video tape
cassette formats, represented the start of domestic video recording machines. Just as with audio tape, reel-to-reel recorders were available to the domestic market long before the tape cassette came into being.
In the UK there was some excitement in fan circles when the oldest known domestic video recording of a Doctor Who episode was discovered. It was made in 1969 too, on a reel-to-reel device, and contained an episode of the serial
The Space Pirates. Unfortunately it was episode 2, which was the only episode of that serial
already held in the BBC archive, having been returned on 16mm film some years previously. The other five episodes remain missing.