Well, let's see...first we have to suppose my memory actually functions...which would not be a sound bet.
But...
Yes: Got Relayer from the Columbia record club (actually, a cassette) way back when it was current.
Pink Floyd: a floormate in college was playing Ripple and I heard it there and bought it.
Don McLean: This was probably the first record I ever owned (American Pie), and I think my grandparents bought it for me.
David Sylvian: A friend that I worked with lent me a bunch of music and he was one I was really taken with.
Mark Eitzel/American Music Club: I actually heard these guys on the radio, but a really good radio station back in San Diego that had a specialty show of obscure people.
Miles Davis best work: I had actually been listening to Miles, but the 80's stuff, not the really good stuff of the 70's. A friend at work lent me a few (starting with Live/Evil), and I was hooked big time...same guy lent me Mahavishnu Orchestra, same result.
Run DMC: Bought Little Steven's Sun City and was introduced to many people I really came to love, including Rap as a genre, also Bobby Womack and a few others.
There are more, but I can sense you are getting bored...