When the production team discovered the show was being cancelled after this killer cat story, they inserted a sweetly melancholic closing monologue for the Seventh Doctor – the sad clown incarnation played by Sylvester McCoy: “There are worlds out there where the sky is burning, the sea's asleep and the rivers dream. People made of smoke and cities made of song. Somewhere there's danger, somewhere there’s injustice and somewhere else the tea's getting cold. Come on, Ace – we’ve got work to do!” The show promptly went off-air for 16 long years.