Anyone notice that a majority of Alt Rock stations that play older music play nothing more than the same Weezer and Nirvana songs. Anything that isn't the same ol' grunge isn't really played at all. Which means most of the 90's that isn't Grunge or Weezer isn't played.
Don't even get me started with the 80's and the late 70's. Alternative as what it is wouldn't even exist if not for the CBGB, the punk-rock scene, the Post-Punk scene as well as the Factory Records/ Manchester Scene.