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Overview: First series to be aired on BBC1 |
Episode 1 (S6E1)9/19/1971
Episode 2 (S6E2)9/26/1971
Episode 3 (S6E3)10/3/1971
Episode 4 (S6E4)10/10/1971
Episode 5 (S6E5)10/17/1971
Episode 6 (S6E6)10/31/1971 |