▁run ▁by ▁the ▁public ly ▁owned , ▁Channel ▁Four ▁Television ▁Corporation ▁and ▁man ages ▁its ▁own ▁advert ising . ▁ ▁S 4 C ▁( ; ▁Channel ▁ 4 ▁Wales ) ▁began ▁broadcast s ▁the ▁day ▁before ▁Channel ▁ 4 ▁after ▁dem ands ▁for ▁a ▁dedicated ▁Wel sh - language ▁service ▁for ▁Wales . ▁Pre viously ▁I TV ▁and ▁the ▁BBC ▁were ▁obliged ▁to ▁air ▁Wel sh ▁language ▁program mes , ▁though ▁these ▁were ▁often ▁shown ▁at ▁off - pe ak ▁times . ▁S 4 C ▁broadcast ▁in ▁place ▁of ▁Channel ▁ 4 ▁which ▁would ▁never ▁be ▁available ▁in ▁Wales ▁via ▁analog ue ▁terrest rial ; ▁consequ ently ▁some ▁Channel ▁ 4 ▁program mes ▁were ▁a ired ▁during ▁off - pe ak ▁times ▁on ▁S 4 C . ▁Digital ▁platforms ▁in ▁Wales ▁provide ▁both ▁services ; ▁S 4 C ' s ▁digital ▁variant ▁air ing ▁Wel sh - language ▁content ▁only . ▁ ▁S 4 C ▁is ▁operated ▁by ▁the ▁S 4 C ▁Author ity , ▁independent ▁of ▁the ▁I BA ▁and ▁latter ly ▁Of com ▁and ▁is ▁fund ed ▁through ▁advert ising ▁and ▁direct ▁government ▁fund ing . ▁The ▁BBC ▁also ▁air s ▁its ▁Wel sh ▁language ▁program mes ▁on ▁the ▁service , ▁fund ed ▁by ▁the ▁lic ence ▁fee . ▁S 4 C ▁ceased ▁broadcast ing ▁on ▁analog ue ▁at ▁the ▁end ▁of ▁March ▁ 2 0 1 0 , ▁when ▁the ▁last ▁analog ue ▁television ▁transm issions ▁in ▁Wales ▁ended . ▁ ▁Channel ▁ 5 ▁A ▁fifth ▁service ▁was ▁lic ensed