January 14-27, 1974; January 28-February 10, 1974; January 30, 1976; February 27, 1976; March 26, 1976; April 23, 1976; May 7, 1976; May 21, 1976; June 4, 1976; June 18, 1976; July 2, 1976; July 30, 1976; August 13, 1976; October 8, 1976; October 22, 1976; November 5, 1976; November 19, 1976; December 3, 1976; December 17, 1976; January 28, 1977; February 14, 1977; February 28, 1977; March 14, 1977; March 28, 1977; April 11, 1977; April 25, 1977; May 23, 1977; June 6, 1977; June 20, 1977; July 4, 1977; August 15, 1977; September 26, 1977; October 24, 1977; December 5 1977; January 30, 1978; March 27, 1978; April 10, 1978; April 24, 1978; May 8, 1978; June 5, 1978; June 19, 1978; July 3, 1979; July 31, 1979; October 9, 1978; December 4, 1978; December 18, 1978; January 29, 1979; February 12, 1979; February 26, 1979; March 12, 1979; March 26, 1979; April 9, 1979; April 23, 1979; May 21, 1979; June 4, 1979; June 18, 1979; July 2, 1979; July 16, 1979; September 17, 1979