1966 in radio

Events

• September: KWNT-FM signs on the air, simulcasting the AM signal of KWNT and its country music format. Unlike the AM signal, which is daytime only, KWNT-FM's broadcast day goes to at least 10 p.m.
• September 16: WFIL 560 AM in Philadelphia changes from an MOR adult standard format to top 40 as "The Pop Explosion – Famous 56"
• December 15 - WGIL-FM of Galesburg, Illinois signs on at 94.9 FM as sister station to WGIL-AM; by 1974, the station's call letters were changed to WAAG.

  Debuts

• May 3 – Swinging Radio England and Britain Radio commence broadcasting on AM, with a combined potential 100,000 watts, from the same ship anchored off the south coast of England in international waters.
• October 22 – WJVM launches in Sterling, Illinois.

  Births

• January 25 – Wes Durham, American sportscaster and radio play-by-play announcer for Georgia Tech sports.
• April 1 – Chris Evans, British radio disc jockey.
• April 23 – Bubba the Love Sponge, American radio personality.
• October 27 – Matt Drudge, American Internet journalist and former talk radio host.
• November 29 – Ryan Cameron, actor, comedian, radio personality and public address announcer for the NBA's Atlanta Hawks.

  Deaths

• April 11 – A. B. Campbell, English naval officer and radio broadcaster.
• December 2 – Giles Cooper, British broadcast dramatist.