Pertwee's voice was too identifiable. The radio announcer names the area where the Inferno project is taking place as Eastchester; the name is not mentioned anywhere else in the story, but is subsequently mentioned in spin-off media. The scene was included as an extra on the DVD releases, with the episode itself presented exactly as originally transmitted (using the b/w film recording for reference when editing). References External links Inferno DVD page on the Doctor Who Restoration Team Website Doctor Who Locations – Inferno Reviews Inferno reviews at Outpost Gallifrey Target novelisation Third Doctor serials Doctor Who serials novelised by Terrance Dicks 1970 British television episodes Alternate history television episodes Television episodes about parallel universes Dystopian television episodes