Series 4

E1. Episode 1

Feb 2, 1972 · 60m

E2. Episode 2

Feb 11, 1972 · 60m

E3. Episode 3

Mar 3, 1972 · 60m

E4. Episode 4

Mar 10, 1972 · 60m

E5. Episode 5

Mar 21, 1972 · 60m

E6. Episode 6

Apr 5, 1972 · 60m

E7. Episode 7

Apr 13, 1972 · 60m

E8. Episode 8

May 4, 1972 · 60m

E9. Episode 9

May 12, 1972 · 60m

E10. Episode 10

May 23, 1972 · 60m

E11. Episode 11

Jun 3, 1972 · 60m

E12. Episode 12

Jun 16, 1972 · 60m

E13. Episode 13

Jun 23, 1972 · 60m