Savage said:

I'd vote for straight up newsgroup release (never going to disappear) or filesharing sites like filefactory (may get pulled at some point, and it costs money to upload on most of them). Sure, these would axe streaming options, but it would at least get them out there. You could even password protect the files from prying eyes.

It doesn't cost a thing to upload to a lot of sites. Megashares, Depositfiles, Letitbit, Rapidgator and Mediafire (a personal favorite) are all free to upload. There may be a limit, but we're talking about 100 to 300 gb, so there should be plenty of leeway for uploading a good MKV or AVCHD of EMPIRE:R.

For those who DO upload to a file sharing site (involving RAR files), I would definitely consider altering the name (from EMPIRE STRIKES BACK to something like LUCK'S MISSING HAND; password protection does help too, per Savage's note).