1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
Technology Early film 1890         Fessenden modulation 1901   First TV Broadcast 1928             Sound film 1929 FM 1933        TV Demonstrated at Worlds Fair  1939 First cable tv 1949   FM stereo 1961  ARPAnet 1969 Pong 1971       HBO 1972       Betamax VCR 1975   Apple II 1977 IBM PC 1981          Cell phone invented 1984 WWW 1990     Mosaic 1993   Tivo 1999 DTV/HDTV 2000-2009  iPod 2001
Business American Marconi RCA 1919 First commercial radio station WEAF 1920   NBC 1926    RCA allocates resources to TV Fall of radio networks   Rise of FM   computer sompanies vie with media electronics sales               advertising moves to the 'net                   
Social     First "broadcast" KDKA 1921    radio becomes primary source of entertainment   TV becomes primary source of entertainment       Advent of the digital divide Time makes "You" Man of the Year (2006)
Government Regulation   Radio Act of 1912 Zenith Decision 1926  Radio Act of 1927 Communications Act of 1934 FCC sets TV standards 1941            FCC reallocates FM on spectrum FCCsets NTSC standard, allocates TV spectrum 1954 FCC ends practice of AM-FM simulcast   Regan admin drops Fairness Doctrine 1987 Digital Millennium Copyright Act (1998)              Telecom Act of 1996  
Content     Harding election results broadcast 1920 Live Music            Phonographic "Golden Age" drama & comedy WW II News coverage Radio loses comedy/drama    Top 40              1956 Heartbreak Hotel WOR-FM Progressive Rock  1967   57 Channels (And Nothin' On) WWW:  info > commercial        Whatever