I still remember the first time I heard "Proud Mary". I was listening to KOMA while backed up to a drilling rig on the north side of Denver City, TX waiting to make a cut-off about 11 PM and it played. Brand new song by CCR and I became a fan of them right then. It was a fairly pleasant, warm, early winter night. The next morning I was back over there up on the floor with a rosebud trying to thaw out the mud pump during a brand new howling blue norther. After about an hour and a half the driller finally realised that one rosebud wasn't going to get the job done and we gave up. I could have told him right off the bat he was whistling in the wind but it wouldn't have done any good.
KOMA was the station to listen to at night. It went away shortly after sunrise and became available slightly before sunset. Sometimes we could get WLX out of Chicago in winter but it was iffy while KOMA was always there year round.