A good overview of the birth of radio broadcasting in the US?

[Apollo Zeus]

2. Thanks

What I have so far is pretty basic: Coming out of WW1 there is better technology and Westinghouse backs the first regular broadcast, KDKA Pittsburg, in order to sell more radios in 1920. Westinghouse helps form RCA (Radio Corp of America) in 1919 then NBC in 1926.

By 1922 there are 500+ stations and Americans spend $60 million (about $880 mil in 2020) buying radio receivers at $8 to $300 each. Also in 1922 the first receivers with loudspeakers are sold -- prior to that radio was for headphones. The BBC launches in the UK.

In 1927 you have federal regulation of radio, the premiere of "The Jazz Singer" and the deaths of Sam Warner and Marcus Loew.