Considering that this release is a Special Edition, there are plenty of extras included, more than enough to make this DVD worthy of your hard-earned money. A commentary for the story is here, featuring Peter Davison, Nicola Bryant, and the director, Graeme Harper. Hearing from the people who were actually on set is thrilling, and all three add a lot to the history and understanding to the episode.
In fact, many of those who worked on "The Caves of Androzani" are still alive, and are featured in the various special features. A 36-minute extra called "Chain Reaction" interviews a number of them about their experience with this particular story, which was originally titled "Chain Reaction." Harper gets his own 12-minute interview, in which he dwells on directing both this serial, and a modern Doctor Who tale from the current reboot. Five minutes are devoted to the creation of Sharaz Jek, who was almost played by several of today's well-known icons. Old talks with Davison and Colin Baker are present. Plus, there is a photo gallery, extended scenes, and PDF materials.
In short, this is a great Doctor Who story, and even if you have already purchased it on DVD, this release adds a lot to the tale. For anyone interested in the best of Classic Who, and how it got made, this is a set for you.
Doctor Who "The Caves of Adrozani" Special Edition is available for sale now.