I don't know anything about music videos, but in the early days of television there were occasional programs that exposed and celebrated the artifice of making television. My guess is that it had much more to do with playing around with the new toys than it did with any interest in verfremdungseffekt. I remember a sunday night program in the mid 1950's billed by NBC as an "experiment." The show was called "Summer Formal", I think, and the experiment was that the cameras and mike boom were visible on the screen. The cameramen wore white dinner jackets. Honest. -Henry Breitrose Stanford