Caption: KNBC is an audio and visual distortion of television signals broadcast during December 2015 over the 602-608 MHz spread of the electromagnetic spectrum from a tower located at 34°13′32″N, 118°3′52″W. Casey Reas
http://www.wired.com/2016/02/why-use-a-paintbrush-when-you-can-make-mind-bending-art-with-code/