[s2e9] The Satan Pit -

: Extra dialogue was written to explain why the deep cavern floor was covered in liquid (poison rain/snow from subterranean gases) due to the real-world snowy conditions during the quarry shoot. 2026 Target Novelization

: "I've seen fake gods and bad gods and demi-gods... But if I believe in one thing... just one thing... I believe in her!". [S2E9] The Satan Pit

: Early drafts featured the Slitheen (from Series 1) as the enslaved race on Krop Tor. Russell T Davies later replaced them with the newly created Ood to avoid detracting from the human characters and because new masks could be made within the budget. : Extra dialogue was written to explain why

The draft text includes several famous lines, such as the Doctor's monologue about his beliefs and his final description of himself and Rose: just one thing