Watch Doctor Who online: Episode 33 Doctor Who and the Silurians Supplemental DVD

- 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 - 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)

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