I remember seeing the Tomorrow's World demo when I was 6 years old - didn't they say something like 'You won't be able to hear just how good this is through your TV set at home, but take it from us, it sounds amazing in the studio!'?
That CD player was cool though - a door loading silver thing IIRC with Bee Gee's 'Living eyes' CD.
I had a Marantz CD54 (Philips CD104 tarted up) a while back, and barring slow track access, it sounded OK. I've got a Denon DCD1150 (I think?) from 1984 that I acquired a couple of years ago and that's surprisingly good as well.
You'd be amazed at what early CDs go for - "Now that's what I call music 4" frequently goes on Ebay for around £500...