| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | 2nd January 1975 |
January 2, 1975
BBC One
|
30 | |
| S12E02 | 9th January 1975 |
January 9, 1975
BBC One
|
30 | |
| S12E03 | 16th January 1975 |
January 16, 1975
BBC One
|
30 | |
| S12E04 | 23rd January 1975 |
January 23, 1975
BBC One
|
30 | |
| S12E05 | 30th January 1975 |
January 30, 1975
BBC One
|
30 | |
| S12E06 | 6th February 1975 |
February 6, 1975
BBC One
|
30 | |
| S12E07 | 13th February 1975 |
February 13, 1975
BBC One
|
30 | |
| S12E08 | 20th February 1975 |
February 20, 1975
BBC One
|
30 | |
| S12E09 | 27th February 1975 |
February 27, 1975
BBC One
|
30 | |
| S12E10 | 6th March 1975 |
March 6, 1975
BBC One
|
30 | |
| S12E11 | 13th March 1975 |
March 13, 1975
BBC One
|
30 | |
| S12E12 | 20th March 1975 |
March 20, 1975
BBC One
|
30 | |
| S12E13 | 27th March 1975 |
March 27, 1975
BBC One
|
30 | |
| S12E14 | 3rd April 1975 |
April 3, 1975
BBC One
|
30 | |
| S12E15 | 10th April 1975 |
April 10, 1975
BBC One
|
30 | |
| S12E16 | 17th April 1975 |
April 17, 1975
BBC One
|
30 | |
| S12E17 | 24th April 1975 |
April 24, 1975
BBC One
|
30 | |
| S12E18 | 1st May 1975 |
May 1, 1975
BBC One
|
30 | |
| S12E19 | 8th May 1975 |
May 8, 1975
BBC One
|
30 | |
| S12E20 | 15th May 1975 |
May 15, 1975
BBC One
|
30 | |
| S12E21 | 22nd May 1975 |
May 22, 1975
BBC One
|
30 | |
| S12E22 | 29th May 1975 |
May 29, 1975
BBC One
|
30 | |
| S12E23 | 5th June 1975 |
June 5, 1975
BBC One
|
30 | |
| S12E24 | 12th June 1975 |
June 12, 1975
BBC One
|
30 | |
| S12E25 | 19th June 1975 |
June 19, 1975
BBC One
|
30 | |
| S12E26 | 26th June 1975 |
June 26, 1975
BBC One
|
30 | |
| S12E27 | 3rd July 1975 |
July 3, 1975
BBC One
|
30 | |
| S12E28 | 10th July 1975 |
July 10, 1975
BBC One
|
30 | |
| S12E29 | 17th July 1975 |
July 17, 1975
BBC One
|
30 | |
| S12E30 | 24th July 1975 |
July 24, 1975
BBC One
|
30 | |
| S12E31 | 31st July 1975 |
July 31, 1975
BBC One
|
30 | |
| S12E32 | 7th August 1975 |
August 7, 1975
BBC One
|
30 | |
| S12E33 | 14th August 1975 |
August 14, 1975
BBC One
|
30 | |
| S12E34 | 21st August 1975 |
August 21, 1975
BBC One
|
30 | |
| S12E35 | 28th August 1975 |
August 28, 1975
BBC One
|
30 | |
| S12E36 | 4th September 1975 |
September 4, 1975
BBC One
|
30 | |
| S12E37 | 11th September 1975 |
September 11, 1975
BBC One
|
30 | |
| S12E38 | 18th September 1975 |
September 18, 1975
BBC One
|
30 | |
| S12E39 | 25th September 1975 |
September 25, 1975
BBC One
|
30 | |
| S12E40 | 2nd October 1975 |
October 2, 1975
BBC One
|
30 | |
| S12E41 | 9th October 1975 (600th edition) |
October 9, 1975
BBC One
|
30 | |
| S12E42 | 16th October 1975 |
October 16, 1975
BBC One
|
30 | |
| S12E43 | 23rd October 1975 |
October 23, 1975
BBC One
|
30 | |
| S12E44 | 30th October 1975 |
October 30, 1975
BBC One
|
30 | |
| S12E45 | 6th November 1975 |
November 6, 1975
BBC One
|
30 | |
| S12E46 | 13th November 1975 |
November 13, 1975
BBC One
|
30 | |
| S12E47 | 20th November 1975 |
November 20, 1975
BBC One
|
30 | |
| S12E48 | 27th November 1975 |
November 27, 1975
BBC One
|
30 | |
| S12E49 | 4th December 1975 |
December 4, 1975
BBC One
|
30 | |
| S12E50 | 11th December 1975 |
December 11, 1975
BBC One
|
30 | |
| S12E51 |
18th December 1975
season finale
|
December 18, 1975
BBC One
|
30 | |
| S12E52 | 1975 Christmas Special |
December 23, 1975
BBC One
|
||
| S12E53 |
1975 Christmas Special (Part 2)
season finale
|
December 25, 1975
BBC One
|
No artwork of this type.
No artwork of this type.