The scene was filmed for Children In Need in 2005.
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Doctor Who section of DavidTennantOnTwitter.com
David Tennant is backing Mental Health Awareness Week! Are you? Find out more about the week: https://t.co/tpVlFiRdr1 #MHAW17 pic.twitter.com/qRg2GQl3CW— Mental Health Fdn (@mentalhealth) May 4, 2017