• S 6: Ep 77 July 10-14, 1972 (NBC-TV)
    7/10/72
  • S 6: Ep 66 May 15-21, 1972 (1)
    5/15/72
  • S 6: Ep 37 February 7-11, 1972 (NBC-TV)
    2/7/72
  • S 6: Ep 25 December 20-26, 1971 (1)
    12/20/71
  • S 6: Ep 8 October 18-22, 1971
    10/18/71
  • S 5: Ep 50 August 9-13, 1971
    8/9/71
  • S 5: Ep 36 May 3-7, 1971
    5/3/71
  • S 4: Ep 32 April 6-10, 1970
    4/6/70