January 15, 1970
March 19, 1970
May 2, 1970
May 21, 1970
June 30, 1970
July 16, 1970
September 2-3, 1970
September 17, 1970
October 6, 1970
November 19, 1970
January 7, 1971
January 21, 1971
February 16, 1971
March 22, 1971
May 1, 1971
May 25, 1971
June 27, 1971
July 15, 1971
September 16, 1971
October 19, 1971
November 18, 1971
January 20, 1972
March 9, 1972
May 13, 1972
June 29 & July 1, 1972
July 20, 1972
September 12, 1972
October 17, 1972
November 16, 1972
January 18, 1973
February 7, 1973
March 5-6, 1973
March 22, 1973
May 12, 1973
July 19, 1973
September 20, 1973
October 30, 1973
January 17, 1974
February 11, 1974
March 28, 1974
April 26, 1974
May 3, 1974
June 5, 1974
September 19, 1974
October 29, 1974
November 21, 1974
January 16, 1975
February 25, 1975
March 12, 1975
May 2, 1975
July 10, 1975
September 3, 1975
September 23, 1975
October 23, 1975
November 18, 1975
January 15, 1976
March 4, 1976
April 6, 1976
April 29-30, 1976
May 7, 1976
June 10, 1976
July 25, 1976
September 16, 1976
October 12, 1976
November 18, 1976
January 20, 1977
March 1, 1977
April 18, 1977
May 25-26, 1977
July 21, 1977
August 29, 1977
September 15, 1977
October 11, 1977
October 31, 1977
December 1, 1977
January 19, 1978
February 16-17, 1978
March 16, 1978
April 20, 1978
May 17, 1978
July 20, 1978
September 21, 1978
October 17, 1978
November 16, 1978
January 18, 1979
March 13, 1979
April 19, 1979
May 17, 1979
June 11, 1979
July 13, 1979
September 20, 1979
October 2, 1979
November 15, 1979
