Season 12 aired between 04 Jan 1971 and 29 Dec 1971, 9 episodes.
Episodes
E01
Mon Jan 4 1971
04 Jan 1971
E16
Feb 24th, 1971
24 Feb 1971
E25
March 29th, 1971
29 Mar 1971
E26
Episode 1065 (31st March 1971)
31 Mar 1971
E40
Episode 1079 (19th May 1971)
10 May 1971
E51
28th June 1971
28 Jun 1971
E52
30th June 1971
30 Jun 1971
E54
7th July 1971
07 Jul 1971
E104
Wed Dec 29 1971
29 Dec 1971