ays ▁( something ▁the ▁network ▁intention ally ▁did ▁to ▁sid est ep ▁F CC ▁reg ulations ▁for ▁television ▁networks ▁in ▁effect ▁at ▁Fox ' s ▁launch ), ▁and ▁some ▁of ▁its ▁major ▁market ▁affili ates ▁used ▁to ▁broadcast ▁on ▁U H F ▁before ▁the ▁digital ▁transition ▁( se ver al ▁affili ates ▁though ▁broadcast ▁on ▁V H F ▁pre - transition , ▁primarily ▁as ▁a ▁result ▁of ▁affili ation ▁de als ▁with ▁former ▁long time ▁Big ▁Three ▁affili ates ▁owned ▁by ▁now - def unct ▁station ▁groups ▁New ▁World ▁Communic ations ▁and ▁SF ▁Broadcast ing ▁that ▁it ▁signed ▁after ▁acqu iring ▁the ▁NFL ▁rights ). ▁ ▁Many ▁of ▁its ▁affili ates ▁in ▁mid - size ▁and ▁small ▁mark ets ▁out source ▁news ▁production ▁to ▁Big ▁Three ▁affili ates ▁rather ▁produce ▁their ▁own ▁new sc asts , ▁and ▁its ▁flags hip ▁stations ▁in ▁New ▁York ▁City ▁and ▁Los ▁Angeles ▁do ▁not ▁include ▁the ▁network ' s ▁name ▁within ▁their ▁call sign s ▁( F ox ' s ▁owned - and - oper ated ▁stations ▁in ▁New ▁York ▁City ▁and ▁Los ▁Angeles ▁instead ▁use ▁the ▁respective ▁call sign s ▁W N Y W ▁and ▁K T TV ; ▁the ▁W FO X - TV ▁and ▁K FO X - TV ▁calls ▁are ▁respectively ▁used ▁by ▁Fox ▁affili ates ▁in ▁Jackson ville , ▁Florida ▁and ▁El ▁Pas o , ▁Texas ). ▁Fox ' s ▁only ▁scheduled ▁news ▁program ▁is ▁Fox ▁News ▁Sunday , ▁which ▁it ▁air s ▁on ▁Sunday ▁m orn ings ; ▁special ▁news ▁coverage