Years ago I got my father a set of cassette tapes of WCBS New York radio's D-Day coverage with anchor Bob Trout. He really enjoyed listening to them, and remembered reports on the radio when he was 9.
The entire day's coverage is now available online:
https://archive.org/details/Complete_Broadcast_Day_D-Day and is well worth a listen.
Addresses by Eisenhower, DeGaulle, and other war time leaders and also leaders in exile of occupied nations alerting their people to the invasion. Can't remember if Churchill or King George spoke or not.
Interesting tidbit about D Day... Churchill was adamant that he would accompany the invasion forces and would very likely embark onto the beach on a landing craft at some point.
King George got wind of it and told Churchill that he would accompany him, telling him that if the Prime Minister thought it necessary to accompany the troops that the King, as leader of the armed forces, MUST go.
Churchill didn't go.
Some neat D Day trivia from the BBC:
https://www.bbc.co.uk/programmes/articles/Q9YNVD851WHmGm6jy9mx1X/24-facts-about-d-day