. ▁ ▁Welcome ▁to ▁Rock ville ▁is ▁an ▁annual ▁rock ▁and ▁metal ▁music ▁festival ▁in ▁Jackson ville , ▁Florida . ▁ ▁References ▁ ▁Category : Comp an ies ▁based ▁in ▁Los ▁Angeles ▁Category : Comp an ies ▁established ▁in ▁ 2 0 1 1 ▁Category : 2 0 1 1 ▁establish ments ▁in ▁California <0x0A> </s> ▁W D AM - TV , ▁virtual ▁and ▁V H F ▁digital ▁channel ▁ 7 , ▁is ▁a ▁dual ▁N BC / ABC - aff ili ated ▁television ▁station ▁serving ▁H att ies burg , ▁Mississippi , ▁United ▁States ▁that ▁is ▁lic ensed ▁to ▁La ure l . ▁The ▁station ▁is ▁owned ▁by ▁Gray ▁Television . ▁W D AM - TV ' s ▁stud ios ▁and ▁transmit ter ▁are ▁located ▁on ▁US ▁ 1 1 ▁in ▁un in cor por ated ▁Mos elle ▁in ▁southern ▁Jones ▁County . ▁On ▁cable , ▁the ▁station ▁is ▁available ▁on ▁Com cast ▁X fin ity ▁channel ▁ 4 . ▁ ▁History ▁W D AM - TV , ▁named ▁for ▁the ▁initial s ▁of ▁the ▁original ▁owner ▁David ▁A . ▁Mad ison , ▁signed - on ▁June ▁ 8 , ▁ 1 9 5 6 ▁air ing ▁an ▁analog ▁signal ▁on ▁V H F ▁channel ▁ 9 . ▁At ▁that ▁time ▁it ▁carried ▁both ▁N BC ▁and ▁ABC . ▁During ▁the ▁late ▁ 1 9 5 0 s , ▁the ▁station ▁was ▁also ▁briefly ▁affili ated ▁with ▁the ▁N TA ▁Film ▁Network . ▁▁ ▁Even ▁though ▁almost ▁all ▁media ▁mark ets ▁were