Ah-HAH! Yep, that's quite different from a typical CRT display. It reminds me of my days back years ago as a broadcast control engineer; the TV control had a number of displays which would show the spectral content or something of that sort (I worked in radio...not my department as such) which looked sort of like this might as viewed from the side. Very strange...I did do some experimentation with video feedback and oscillator injection techniques back in the late 1970s, trying to shoot for some of the ideas that I'd seen as a kid when PBS was showing some early video synthesis art circa 1970-71-ish. I know they had footage generated by the Paik/Abe rig at WGBH in that, plus some Dan Sandin and Steven Beck clips, etc. Eventually, it's something I'd like to get back toward as budget allows.