Something reminded me of the old radio program "You Are There" (late 40's). It featured recreations of famous events in history, narrated by an announcer. The one I particularly remember was the signing of the Magna Charta, with the announcer talking about the angry barons and building the tension over whether King John would sign or fight.
Anyway, turns out the tapes of that program are available online (why am I surprised). The list of all the programs is revealing: almost nothing after 1900, a couple on women's rights, almost nothing on civil rights, and some oddities, at least by today's standards: The Trial of Samuel Chase? (A justice impeached but acquitted in 1804/5)
I guess it was radio's equivalent of today's History Channel.