A History of the Residents - The Eyes Scream with Penn & Teller

Really surprised this isn't on CZcams, it's a 1991 documentary about San Francisco experimental group The Residents...you can see the likes of Orbital or Deadmau5 aren't exactly new in their masks or even lit up faces & torch eyes (check out the 1985 live performance 35mins in!). Narrated by Penn Jillette this is taken of my own VHS - which sadly is crumbling at the 7:20 min mark, the rest seems fine.
Features clips of Don't Be Cruel, Teddy Bear, Hello Skinny, One Minute Movies, strange Japanese interviews, It's A Man's Man's Man's World, From the Plains to Mexico - Night Music, Earth vs The Flying Saucers, Reich & Roll Jailhouse Rock, and many more.
Why isn't this available commercially on DVD?