1946 Event WEAF radio changes call letters to WNBC (New York City) 1926 Event AT&T sells WEAF radio to RCA (New York City) 1923 Event WEAF radio begins broadcasting Eveready Hour (variety show) 1923 Event 1st permanent radio network-AT&T (WEAF New York and WMAF Mass) 1922 Event WEAF in New York City airs 1st radio commercia, Queensboro Realty, $100 for 10 minutes 1922 Event AT&T radio station WBAY becomes WEAF (New York City) 1922 Event AT&T begins broadcasting on WBAY (NYC-later WEAF, WNBC, WRCA and WFAN)
