Special Features
Commentary by actors Caroline John, (Liz), Nicholas Courtney (the Brigadier), Peter Miles (Lawrence), Geoffrey Palmer (Masters), director Timothy Combe, producer Barry Letts, script editor Terrance Dicks; What Lies Beneath - cast and crew explore how the socio-political climate of the late sixties shaped this story (35 mins); Going Underground - making of (19 mins); Now and Then - Location featurette (9 mins) ; Musical scales - retrospective on an era of musical experimentation in Doctor Who (13 mins); Color Silurian overlay featurette showing how the story was restored to full color for DVD release (4 mins); Isolated music; Radio times listings (DVD-ROM PC/Mac); Photo gallery (6 mins); Production note subtitles