Evidently, George Lucas has made it very clear that he will make sure the special is never released on DvD or Blue-Ray. Carrie Fisher apparently has one of the few digital copies that was supposed to be used as part of a commentary, but she says the only time she shows it is at the end of parties when she wants people to leave.
It seems that George Lucas considers the special to be his biggest mistake (even bigger than JarJar) and if he couldn't he'd go back in time and smash every copy before it aired.
That said, the one piece that everyone loved is the animated feature with Boba Fett and that's an easter egg on the 2011 Blue-Ray of the Complete Saga boxed set.