0Episode 1
14th July 1972Episode 2
19th January 1973Episode 3
16th February 1973Episode 4
3rd January 1974Episode 5
7th February 1974Episode 6
21st February 1974Episode 7
27th February 1975Episode 8
3rd July 1975Episode 9
23rd October 1975Episode 10
4th March 1976Episode 11
15th July 1976Episode 12
28th October 1976Episode 13
8th September 1977Episode 14
13th October 1977Episode 15
6th April 1978Episode 16
18th January 1979Episode 17
3rd January 1980Episode 18
6th March 1980Episode 19
3rd April 1980Episode 20
3rd July 1980