Oh yeah, and the only proper way to see this is on a TV/movie screen with the LP/CD... synching it up yourself. It's easy to do. You can find the Wizard of Oz DVD cheap on ebay. DSoTM vinyl is best because flipping the disc fits into the synchronicity too.
For convenience though, I use the CD. But actually, I use the CD in DTS!!!
Yep... there are die-hard AV nuts who have converted a lot of the old quadraphonic recordings (there were a bunch in the 70s, including other Pink Floyd albums) into DTS surround. All that's needed to play them is a DVD player (or CD player with digital out) and a receiver capable of decoding DTS signals. This presents a problem if all you have is a DVD player and need it for the movie--In my case I've got a CD changer as well so I put the CD there and the movie in my DVD player. Regardless of the movie synch, the Quad mix of this album is well worth having.
It sounds fantastic with four speakers. There are a few ping-pong effects (the cha-chings in "Money" for one), but mostly the instruments and the vocals are separated more front/back, creating a very cool spacial effect. This isn't some hack job, either... these are the original quadraphonic recordings made by PF and Alan Parsons (most are transfered from eight-track, but some are from dual LPs). Quadraphonic sound never took off because it used to be so complicated to do. For the SQLPs, you'd need two turntables and two amps and you'd have to synch them up right. DTS CDs make it so much easier.
I have the Wish You Were Here and Atom Heart Mother quad mixes too--they all sound great. I'd be happy to B&P them for anyone who wants them. They burn on regular CD-Rs, but are unplayable without a DTS decoder.
l2c