How can you buy or ask a company to make a DVD from a TV miniseries that is not for sale?

The DVD set I am looking for is from the miniseries made in 1985 called ';Space';. No one, including Amazon, has it.How can you buy or ask a company to make a DVD from a TV miniseries that is not for sale?
There isn't a gaunrteed way, but make an account at tvshowsondvd.com and follow their procedure to state your interest. They report their numbers to the studios.How can you buy or ask a company to make a DVD from a TV miniseries that is not for sale?
hmmm, try: imdb.com they may have info for ';space';