| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | Episode 1 |
December 5, 1972
BBC One
|
||
| S12E02 | Episode 2 |
December 12, 1972
BBC One
|
||
| S12E03 | Episode 3 |
December 19, 1972
BBC One
|
||
| S12E04 | Episode 4 |
January 2, 1973
BBC One
|
||
| S12E05 | Episode |
January 9, 1973
BBC One
|
||
| S12E06 | Episode |
January 16, 1973
BBC One
|
||
| S12E07 | Episode |
January 23, 1973
BBC One
|
||
| S12E08 | Episode |
January 30, 1973
BBC One
|
||
| S12E09 | Episode |
February 6, 1973
BBC One
|
||
| S12E10 | Episode |
February 13, 1973
BBC One
|
||
| S12E11 | Episode |
February 20, 1973
BBC One
|
||
| S12E12 | Episode |
February 27, 1973
BBC One
|
||
| S12E13 | Episode |
March 6, 1973
BBC One
|
||
| S12E14 | Episode |
March 13, 1973
BBC One
|
||
| S12E15 | Episode |
March 20, 1973
BBC One
|
||
| S12E16 |
Episode
season finale
|
March 27, 1973
BBC One
|
No artwork of this type.
No artwork of this type.