Found this clip on Youtube:
https://www.youtube.com/watch?v=Ew6DS2bXYmk
There's a whole bunch more on her channel.
I'm guessing this was recorded on a quad originally, but holy hell, this tape's well preserved - you generally don't see old videotape with this kind of quality to it.
Am I right that this would have been recorded to a quad machine, or was anyone using helical for broadcast back then?