Hey, not sure why this isn't quoting my quote too when replying to this, so I've tried to do it manually? Forgive me for my forum fail, I've struggled to do right Anyway...
I was thinking about this recently, as it's been my habit to revisit old Eraserhead a couple of times since I got the BR of it back when I originally posted, trying to figure out the magical position it's held for me. Something was missing and I've come to the odd position that I preferred it in the following way.
It's one of those films that I think is tied to a particular way of viewing it, as I saw it first on a tiny black and white Mitsubishi television I had in my room as a teenager. - it must have been all of 13" screen if that and the curvature of a fish bowl.
It had a dial rather than buttons, and you tuned it in to the channel you wanted to watch. So mostly everything was filtered through a grainy, staticky picture and image that had to be adjusted depending on the weather and foibles of the aerial on top of it. At worst you'd have to adjust as you watched.
Kind of the opposite of HD and 3D, I think it actually lent something special to the films I watched on it, not being entirely sure you'd get a good enough image and sound to see the whole thing. Super nostalgia vision perhaps?
But for Eraserhead, I think it lent a special kind of grainy effect I actually miss with the HD version.
Yeah, so contrary like that I guess, but I think it suited the film
TL:DR: Watch the film through a fine filter of cosmic background radiation, it kinda looks and sounds better?