I remember seeing a video on Top of the Pops in either the 70s or 80s. There was a group of musicians who were dressed in sort of tight space-type suits, with helmets that completely covered their heads so we couldn't see their faces. Then sometimes the camera would zoom in on the head of one of the musicians (in my memory it was the synthesizer player), and reflected in the blank faceplate of his helmet there would be a girl dancing.