Earth Star Voyager

I'd forgotten about this Disney made-for-TV movie that I saw as a kid, called Earth Star Voyager.  The premise is that in the future, Earthlings have irreparably damaged their ecosystem and are searching for another planet to colonize.  Obviously this isn't the typical Disney subject matter.  I'd buy it on DVD, but it hasn't ever been released.  I'll have to look for a bootleg copy.  Incidentally, I think Star Trek: The Next Generation ripped off the idea for the Borg from ESV: the cyborg Shell that keeps talking about "Assembly", and whose organic components are controlled by his robotic ones, is like the Borg and "assimilation".