Season 4

E1. Episode 1

Jan 26, 1977

E2. Episode 2

Feb 2, 1977

E3. Episode 3

Mar 2, 1977

E4. Episode 4

Mar 30, 1977

E5. Episode 5

Apr 13, 1977

E6. Episode 6

Apr 27, 1977

E7. Episode 7

May 22, 1977

E8. Episode 8

May 27, 1977

E9. Episode 9

Jun 8, 1977

E10. Episode 10

Aug 14, 1977

E11. Episode 11

Sep 20, 1977

E12. Episode 12

Oct 4, 1977

E13. Episode 13

Oct 18, 1977

E14. Episode 14

Nov 1, 1977

E15. Episode 15

Nov 14, 1977

E16. Episode 16

Nov 15, 1977

E17. Episode 17

Nov 29, 1977

E18. Episode 18

Dec 13, 1977