With the listening audience increasing in spring and summer 1928, the show's success prompted sponsor Pepsodent Company to bring it to the NBC Blue Network on August 19, 1929. With the Blue Network not heard on stations in the West, many listeners complained to NBC that they wanted to hear the show but could not. Under a special arrangement, "Amos 'n' Andy" debuted coast-to-coast November 28, 1929, on NBC's Pacific Orange Network and continued on the Blue. WMAQ was then an affiliate of CBS and its general manager tried, to no avail, to interest that network in picking up the show. At the same time, the serial's central characters — Amos, Andy and the Kingfish — relocated from Chicago to Harlem. The program was so popular by 1930 that NBC's orders were to only interrupt the broadcast for matters of national importance and SOS calls. Correll and Gosden were making a combined salary of $100,000, which they split three ways to include announcer Bill Hay, who was with them when they started doing radio.