A lesson to all you would-be supergroups, yearning to use national tv to help you find your new singer and sell out concerts before you even really have a band: be original, and if you can't do that, have an original name for your manufactured band. Yesterday a San Diego judge ruled that the original Supernova, the Orange County punk band whose single "Chewbacca" has appeared on the "Clerks" soundtrack, was in the right......