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William Hartnell returned in a cameo as the First Doctor and Patrick Troughton in a more substantial role as the Second Doctor in The Three Doctors. This story marked the end of the Doctor’s exile on Earth, opening up the series to more off-world adventures and beginning a gradual reduction of UNIT-related stories.
10 - 1The Three Doctors (1) Dec. 30, 1972
10 - 2The Three Doctors (2) Jan. 06, 1973
10 - 3The Three Doctors (3) Jan. 13, 1973
10 - 4The Three Doctors (4) Jan. 20, 1973
10 - 5Carnival of Monsters (1) Jan. 27, 1973
10 - 6Carnival of Monsters (2) Feb. 03, 1973
10 - 7Carnival of Monsters (3) Feb. 10, 1973
10 - 8Carnival of Monsters (4) Feb. 17, 1973
10 - 9Frontier in Space (1) Feb. 24, 1973
10 - 10Frontier in Space (2) Mar. 03, 1973
10 - 11Frontier in Space (3) Mar. 10, 1973
10 - 12Frontier in Space (4) Mar. 17, 1973
10 - 13Frontier in Space (5) Mar. 24, 1973
10 - 14Frontier in Space (6) Mar. 31, 1973
10 - 15Planet of the Daleks (1) Apr. 07, 1973
10 - 16Planet of the Daleks (2) Apr. 14, 1973
10 - 17Planet of the Daleks (3) Apr. 21, 1973
10 - 18Planet of the Daleks (4) Apr. 28, 1973
10 - 19Planet of the Daleks (5) May. 05, 1973
10 - 20Planet of the Daleks (6) May. 12, 1973
10 - 21The Green Death (1) May. 19, 1973
10 - 22The Green Death (2) May. 26, 1973
10 - 23The Green Death (3) Jun. 02, 1973
10 - 24The Green Death (4) Jun. 09, 1973
10 - 25The Green Death (5) Jun. 16, 1973
10 - 26The Green Death (6) Jun. 23, 1973
