There are no real special features or anything. I just really love old television shows and movies, especially detective ones like all the Agatha Christie ones. If you collect any of the PBS shows this is a MUST BUY! I've also picked up the second set for season one and they are great too. I love watching these and once you get to the end you can easily start over and they still feel fresh. A lot of this has to do with the cast as well as the smart stories. Anyway get these now!
What's great about it: Rewatchable and a lot of episodes