Agnes White-Tizard, "Betty Crocker’s Cooking School of the Air", 1924.

Agnes White-Tizard, “Betty Crocker’s Cooking School of the Air”, 1924 was a broadcast-radio show featuring Agnes White-Tizard as baker “Betty Crocker”.  The radio broadcast were on CBS, ABC, NBC network-radio as well as local radio stations. CBS, ABC and NBC would later become the “Big Three TV Networks”.  But in the decades of radio broadcasting, Agnes White-Tizard, “Betty Crocker’s Cooking School of the Air” had an audience of listeners.