 KNWS was formerly known as KBDF-LP, and KAZH was formerly known as KNDF-LP; the call letters were changed in 2011, after Una Vez Mas acquired the former KNWS-TV in Houston and renamed it KYAZ.The KBDF and KNDF call letters both referred to XHDF-TV, one of TV Azteca's flagship stations.In early 2007, KBDF planned to start a local newscast, which would be produced in Davenport, Iowa by the Independent News Network.