I have all of these.I have "Sounds In Space" as US,German,and Australian pressing.The National Lampoon one is probably the one I have seen the fewest copies of.Let's not forget the Dot/Packard-Bell demonstration record.

This is still my favorite


 From: Tom Fine <[log in to unmask]>
To: [log in to unmask] 
Sent: Wednesday, September 26, 2012 3:58 PM
Subject: [ARSCLIST] some early stereo demos
Here's some YouTube fun for the evening:
check out the funky colored vinyl!
hey camera dude, plug the line outs into your camera!

and then there's this:

-- Tom Fine