Mushure mekunge kukumbira kweMutual kwakarambwa neFCC, RCA yakaisa chikumbiro chayo chekudzosera kumashure kurongeka kwekubvisa. Zvisinei, muna 1941, kambani yakasarudza kutengesa NBC Blue muchiitiko chekuti kukumbira kwayo kwakarambwa. Iyo Blue Network yakatumidzwa zita rekuti NBC Blue Network, Inc. uye NBC Red yakava NBC Red Network, Inc. nekuda kwezvinangwa zvemakambani. Materevhizheni maviri aya akaparadzanisa mashandiro avo musi waNdira 8, 1942, neBlue Network ichinzi pamhepo se "Blue" kana "Blue Network", uye Blue Network Company, Inc. inoshanda sezita rayo rekambani. NBC Red, panguva iyi, yakazozivikanwa pamhepo se "NBC".
NBC Red Network, Inc