The First Doctor Regenerates | William Hartnell to Patrick Troughton | Tenth Planet | Doctor Who

With his body wearing thin The First Doctor collapses within the TARDIS as the first regeneration takes place... Subscribe here for more exclusive Doctor Who clips and content https://bbc.in/SubscribeToDoctorWho WATCH MORE: Compilations: https://bbc.in/DWCompilations Regenerations: https://bbc.in/DWRegenerations Title Sequences: https://bbc.in/DWTitleSequences The Whoniverse Show: https://bbc.in/TheWhoniverseShow New to Who: https://bbc.in/DWNewToWho Official Podcast: https://bbc.in/DWOfficialPodcast This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/co...