VHS and laserdisc are no longer reasonable. Not only do you have an availability problem since the originals versions of the OT have not been in production for years, but you also have a derioration problem. VHS tapes and laserdisc players degrade over time, and there are only incredibly limited quanties left. However, I also don't believe that the OT should necessarily be put on HD-DVD/Blu-ray and their successors until those formats become the new standard, not technology-wise, but consumer-wise.
Sorry if that was confusing.