September 20, 1959: 12th Season Premiere (special 90-minute episode)

Air Date: September 11, 1960

Air Date: September 4, 1960

Air Date: August 21, 1960

Air Date: August 14, 1960

Air Date: August 7, 1960

Air Date: July 31, 1960

Air Date: July 24, 1960

Air Date: July 17, 1960

Air Date: July 10, 1960

Air Date: July 3, 1960

Air Date: June 26, 1960

Air Date: June 19, 1960

Air Date: June 12, 1960

Air Date: June 5, 1960

Air Date: May 29, 1960

Air Date: May 22, 1960

Air Date: May 15, 1960

Air Date: May 8, 1960

Air Date: May 1, 1960

Air Date: April 24, 1960

Air Date: April 17, 1960

Air Date: April 10, 1960

Air Date: March 27, 1960

Air Date: March 20, 1960

Air Date: March 13, 1960

Air Date: March 6, 1960

Air Date: February 28, 1960

Air Date: February 21, 1960

Air Date: February 14, 1960

Air Date: February 7, 1960

Air Date: January 24, 1960

Air Date: January 17, 1960

Air Date: January 10, 1960

Air Date: January 3, 1960

Air Date: December 27, 1959

Air Date: December 20, 1959

Air Date: December 13, 1959

Air Date: December 6, 1959

Air Date: November 29, 1959

Air Date: November 22, 1959

Air Date: November 15, 1959

Air Date: November 8, 1959

Air Date: November 1, 1959

Air Date: October 25, 1959

Air Date: October 18, 1959

Air Date: October 11, 1959

Air Date: October 4, 1959

Air Date: September 27, 1959