| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Blood Is Thinner Than Water |
June 25, 1970
ITV1
|
30 | |
| S04E02 | Without Prejudice |
July 2, 1970
ITV1
|
30 | |
| S04E03 | New Worlds for Old |
July 9, 1970
ITV1
|
30 | |
| S04E04 | What You Never Have, You Never Miss |
July 16, 1970
ITV1
|
30 | |
| S04E05 | Miracles to Measure |
July 23, 1970
ITV1
|
30 | |
| S04E06 | Only Four Can Play |
July 30, 1970
ITV1
|
30 | |
| S04E07 | 7 |
ITV1
|
30 | |
| S04E08 |
8
season finale
|
ITV1
|
30 |
No artwork of this type.
No artwork of this type.
No artwork of this type.