Earlier yesterday, they were playing a loop of five country songs that either were by Hank Williams, Hank Jr., or had reference to Hank in the songs. Then by last night they were playing a collage of top 40 songs. They are still doing that by the way. And what I find interesting is they are playing these bits in chronological order from the introduction of the Beatles up until the early 80's.
Either way, the message I'm getting is that whether it's country or top 40, it will be some type of oldies product.