The character of Harlan may have been named after the legendary writer Harlan Ellison, whose writings often delved into sci-fi.
The chamber unit the team woke up in looks a bit like the caretaker array in Star Trek: Voyager (1995).
The DVD episode order differs somewhat from the broadcast order. This was the 18th episode broadcast, but is Episode 17 from Volume 4 of the Season 1 box set.