At one time I had all 3 films taped off TV, but Empire and Jedi have been since taped over. It's a shame because I remember that the Jabba's subtitles in Jedi were cropped off the sides of the screen, which would suggest that they were an accurate representation of the theatrical version.
My ANH tape was a lucky survivor - altough there's a bit missing off the start, and there's part of a football match taped over half of the end credits.
I've now got a new VCR, so I'm planning to re-capture the mono sound mix in better quality. This time I'll make it available as an AVI with the video in XviD format for reference - should make it a lot easier to sync up the audio.