➦In 1934..."Lux Radio Theater" premiered.
Lux Radio Theater, a long-run classic radio anthology series, was broadcast on the NBC Blue Network (1934-35); CBS Radio (1935-54), and NBC Radio (1954-55). Initially, the series adapted Broadway plays during its first two seasons before it began adapting films. These hour-long radio programs were performed live before studio audiences. The series became the most popular dramatic anthology series on radio, broadcast for more than 20 years and continued on television as the Lux Video Theatre through most of the 1950s.

Broadcasting from New York, the series premiered at 2:30pm, October 14, 1934, on the NBC Blue Network with a production of Seventh Heaven starring Miriam Hopkins and John Boles in a full-hour adaptation of the 1922–24 Broadway production by Austin Strong. The host was the show's fictional producer, Douglass Garrick (portrayed by John Anthony). Doris Dagmar played another fictional character, Peggy Winthrop, who delivered the Lux commercials. Each show featured a scripted session with Garrick talking to the lead actors. Anthony appeared as Garrick from the premiere 1934 episode until June 30, 1935. Garrick was portrayed by Albert Hayes from July 29, 1935 to May 25, 1936, when the show moved to the West Coast.
Cecil B. DeMille took over as the host on June 1, 1936, continuing until January 22, 1945. On several occasions, usually when he was out of town, he was temporarily replaced by various celebrities, including Leslie Howard and Edward Arnold.
Lux Radio Theatre strove to feature as many of the original stars of the original stage and film productions as possible, usually paying them $5,000 an appearance. In 1936, when sponsor Lever Brothers (who made Lux soap and detergent) moved the show from New York City to Hollywood, the program began to emphasize adaptations of films rather than plays. The first Lux film adaptation was The Legionnaire and the Lady, with Marlene Dietrich and Clark Gable, based on the film Morocco. That was followed by a Lux adaptation of The Thin Man, featuring the movie's stars, Myrna Loy and William Powell.
➦In 1939...BMI (Broadcast Music Incorporated) formed
➦In 1943...RCA (Radio Corporation of America) sold the NBC Blue Radio Network to Edward Noble for $8 million dollars. It was renamed ABC, the American Broadcasting Company.
Although RCA was identified as the creator of the network, NBC was actually owned 50% by RCA, 30% by General Electric, and 20% by Westinghouse. The network officially was launched at 8:00 Eastern time on the evening of Monday, November 15, 1926.
"The most pretentious broadcasting program ever presented, featuring among others, world famed stars never before heard on the air, will mark the Introduction of the National Broadcasting Company to the public Monday night," the press noted, with "a four hour radio performance by noted stars of opera, stage and concert hall". The broadcast was made simultaneously on WEAF and WJZ. Some of NBC's programming was broadcast that evening on WEEI (Boston) WLIT (Philadelphia), WRC (Washington), WDAF (Kansas City), and WWJ (Detroit)., noted by the different background color. NBC Blue would utilize this logo until their 1943 sale.