March 20, 1956 episode 1378 on NBC Radio. Fibber McGee and Molly was a 1935–1959 American radio comedy series. The situation comedy was a staple of the NBC Red Network from 1936 on, after originating on NBC Blue in 1935. One of the most popular and enduring radio series of its time, it ran as a stand-alone series from 1935 to 1956, and then continued as a short-form series as part of the weekend Monitor from 1957 to 1959.  https://en.wikipedia.org/wiki/Fibber_McGee_and_Molly