The History and influence of A. Wallace Rimington's Colour Organ are discussed and debated in these articles about its influence and importance in the UK.
The past has often been a source of material for artists looking for stuff to appropriate and transform in their work. While copyright laws generally frown on this kind of thing, the presence of large archives of downloadable material on-line only make this easier to do.
Whenever I look at early video equipment, I get an amazing sense of just how arbitrary the whole technology is. The screen could just as easily have been circular, the TV a projection apparatus....