'89 or '90. I was in middle school and a big Robotech fan. I was only vaguely aware that Robotech came from something Japanese. When I saw this thing called Clash of The Bionoids at the video rental shelf at my local grocery store I was simultaneously excited and confused. I loved it, but had no idea how this was connected. There being no Internet with which to figure all this out, I decided that DYRL was the original Japanese movie that the series Robotech was based on. I guess since the animation in the TV show was so spotty, I figured that it was an american attempt to copy the style of DYRL. I think I figured it out shortly thereafter, but it goes to show how mysterious anime was for those of us in the pre-internet era of fandom.