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The Inforarium — the greatest source of illicit information in recorded history — is compromised. The Doctor appears in a hologram — "Who the hell are you?". He tells a guard that he will be erasing all traces of himself from their database, making everyone forget what they've heard through means he'd adapted from the Silence. At the end of the message, the guard completely forgets the whole ordeal. Then it replays... "Who the hell are you?"
First Air Date : Mar 26, 2005
Last Air date : Dec 05, 2021
Episode : 153 Episode
Season : 13 Season
Runtime: 26:14 minutes
Studio: BBC One
Country: Canada, United Kingdom