Four or five years ago, I was driving and radio surfing with the seek button in Portland. At one of the stations upon which the seeker stopped, I heard a slightly out of the ordinary Creedence tune. It stuck out because it was one that hadn’t been heard on the radio in decades. I stopped my radio search and listened until the end of the tune. It was, I believe, “Sinister Purpose,” off of Green River. After the tune, the DJ came on and said he hadn’t meant to play such an unknown Creedence song as the one we’d just heard, instead he had intended to play “Bad Moon Rising” or some other tune so overly airwave familiar that it has become tiresome. That was the state of rock radio in the aughts, where Jocks apologized for exposing the audience to something potentially new to them.