Seeing that the 1972 Sparks American Bandstand performance is not likely to appear on the net anytime soon due to Dick Clark productions, we searched if any of Sparks MK1 was captured on video on a European tour that same year. Paydirt. I saw Ron and Russell in the audience of a Brian Wilson show a couple of years ago – do you think Ron and Russell like Holland and Sunflower? I have also seen Sparks live in three decades. Wonder Girl is new wave ten years before new wave.
Historical note, in 1966, Ron & Russell appeared for a few seconds in "The Big T.N.T Show" watching the Ronettes. They also got to see at that same show Ray Charles, Petula Clark, The Lovin' Spoonful, Bo Diddley, Joan Baez, the Byrds, and Ike and Tina Turner. Hat tip for this great screen capture to Mr. R. Steevie Moore (who also graciously provided the Half Nelson demos to me some years ago).