01. Series 4, Episode 1
No details
35min
April 17, 1980
02. Series 4, Episode 2
No details
35min
April 24, 1980
03. Series 4, Episode 3
No details
35min
May 1, 1980
04. Series 4, Episode 4
No details
35min
May 8, 1980
05. Series 4, Episode 5
No details
35min
May 15, 1980
06. Series 4, Episode 6
No details
35min
May 22, 1980
07. Series 4, Final
No details
35min
May 29, 1980