For a snapshot of what was on the radio a hundred years ago today, here’ the radio page from the February 28, 1923, issue of the Washington Evening Star. Click on the image for a larger version.
If you ever had an old radio with a switch marked “marine band,” then perhaps you could have heard what was being played on NAA at 8 PM, namely, a concert by the U.S. Marine Band, concluding with the National Anthem, right before the 10:05 PM weather report.
If your set could pull in Philadelphia, then there was a bedtime story at 7:10 PM. If you missed that one, maybe you could get the one from Chicago at 7:50.