Series 4 Episodes
1. Episode 1
February 2nd, 19721 hr
2. Episode 2
February 11th, 19721 hr
3. Episode 3
March 3rd, 19721 hr
4. Episode 4
March 10th, 19721 hr
5. Episode 5
March 21st, 19721 hr
6. Episode 6
April 5th, 19721 hr
7. Episode 7
April 13th, 19721 hr
8. Episode 8
May 4th, 19721 hr
9. Episode 9
May 12th, 19721 hr
10. Episode 10
May 23rd, 19721 hr
11. Episode 11
June 3rd, 19721 hr
12. Episode 12
June 16th, 19721 hr
13. Episode 13
June 23rd, 19721 hr
