MB and Gerard,
Thanks for the information. I think MPI is selling the complete dvd series for $399.99. I do recall some of the regular posters here reporting that some of the DS dvd sets from other sources were counterfeit and were of poor quality.
MPI states that their dvds are genuine. I still have my DS vhs tapes from the old SCI-FI broadcasts dating back to the early 1990s. So, after nearly 30 years, they still play okay. Although watching the DS dvds, which my local library used to have in their entirety (all 120 dvds), was much more convenient, with 10 episodes per dvd. The dvd extras are neat, with the interviews with many of the DS actors, writers and film crew.
Bob