Season 4
Episodes
625
E25 · Episode 25
Oct 17, 1977
49
E49 · Episode 49
Nov 18, 1977
89
E89 · Episode 89
Jan 5, 1978
170
E170 · Episode 170
May 25, 1978
184
E184 · Episode 184
Jun 16, 1978
220
E220 · Episode 220
Sep 18, 1978
E25 · Episode 25
E49 · Episode 49
E89 · Episode 89
E170 · Episode 170
E184 · Episode 184
E220 · Episode 220