The two-disc set of Survival is typical of the impressive presentations that the Doctor's adventures have received on DVD. Two commentary tracks have been recorded--one featuring McCoy, Aldred, and script editor Andrew Cartmel, and the other by the winners of a contest sponsored by Doctor Who magazine (this appears only for episode 3). The hour-long, two-part Cat Flap (one of the original titles for the serial) covers the making of the serial from start to finish, and Endgame is an intriguing look at how the program might've continued after Survival had it not been cancelled in 1989. Little Girl Lost is a 15-minute exploration of Ace's character from her debut story until Survival, and Destiny of the Doctors features footage of Ainley as the Master taken from the 1997 computer game of the same name. The extras are rounded out by several deleted and extended scenes, a round of outtakes, the standard photo gallery, text-only commentary track, Radio Times listings (in DVD-ROM format), and a 20-minute episode of a U.K. educational program called Search Out Science, which features McCoy and Aldred as their characters in a discussion of (what else?) time and space. --Paul Gaita

DVD features
Thanks to its popularity, the two-disc DVD of City of Death comes with an abundance of typically topnotch supplemental features. The commentary by Glover, co-star Tom Chadbon, and director Michael Hayes, is the longest and most informative of the extras, but it's well-matched by Paris in the Springtime, a 45-minute making-of featurette that offers rare archival interviews with Adams and many of the cast (but not Baker or Ward, sadly) and crew. Paris, W12 offers 20 minutes of studio footage taken from 1/2-inch videotape, while Prehistoric Landscapes and Chicken Wrangler are very different views of the story's special effects (the latter is a particularly amusing glimpse at the challenges of working with live animals). Finally, there's Eye on Blatchford, a wry parody of BBC "human interest" news items, here focusing on another alien attempting to live peacefully in the rural English countryside. Production notes and photos and a batch of well-concealed Easter eggs round out this highly enjoyable set. --Paul Gaita