BANG TV writer Chuck Barney reports that last vestiges of KTEH 54, the San Jose public television station that has served the South Bay since 1964, will be wiped away on July 1 when the station changes its call letters to KQED Plus. Northern California Public Broadcasting, the parent of KQED 9, acquired KTEH in 2006. Research by NCPB found “brand confusion” among the public, with many viewers failing to make the connection that KTEH was managed and programmed by KQED.