• S 7: Ep 20 November 13-17, 1972 (NBC-TV)
    11/13/72
  • S 7: Ep 19 November 6-12, 1972 (2)
    11/6/72
  • S 7: Ep 5 September 18-24, 1972 (2)
    9/18/72
  • S 6: Ep 74 June 19-23, 1972 (NBC-TV)
    6/19/72
  • S 6: Ep 60 April 24-30, 1972 (1)
    4/24/72
  • S 6: Ep 47 March 13-17, 1972 (NBC-TV)
    3/13/72
  • S 6: Ep 44 February 28-March 5, 1972 (1)
    2/28/72
  • S 6: Ep 18 November 29-December 3, 1971 (NBC-TV)
    11/29/71
  • S 5: Ep 21 January 18-22, 1971
    1/18/71
  • S 4: Ep 33 April 13-17, 1970
    4/13/70