TNT ran the Logan's Run series late night on weekends back in the 90's, so it was likely new video masters were made at the time. It wouldn't surprise me if it pops up in Warner's new burn on demand site one of these days.
"Beyond Westworld" had a very short run, but IIRC, the SciFi channel ran all the episodes in the 90's. They actually dug up quite a few shows that had not been seen since they originally aired. A pity they don't do that anymore!