6 . ▁It ▁broadcast s ▁identical ▁programming ▁to ▁S BS , ▁but ▁in ▁ 1 0 8 0 i ▁HD ▁via ▁Free view ▁and ▁Opt us ▁D 1 . ▁ ▁On ▁ 8 ▁April ▁ 2 0 1 7 , ▁alongside ▁the ▁launch ▁of ▁S BS ▁Vic eland ▁HD , ▁S BS ▁HD ▁was ▁upgrad ed ▁to ▁an ▁M PE G - 4 ▁format , ▁replacing ▁the ▁standard ▁M PE G - 2 ▁format ▁it ▁had ▁used ▁since ▁its ▁in ception . ▁ ▁S BS ▁On ▁Dem and ▁S BS ▁On ▁Dem and ▁is ▁a ▁video ▁on ▁demand ▁and ▁catch ▁up ▁TV ▁service ▁run ▁by ▁the ▁Special ▁Broadcast ing ▁Service . ▁The ▁service ▁became ▁available ▁on ▁ 1 ▁September ▁ 2 0 1 1 . ▁ ▁S BS ▁On ▁Dem and ▁is ▁available ▁on ▁the ▁web ▁and ▁via ▁apps ▁for ▁mobile ▁devices , ▁smart ▁TV s ▁and ▁set - top ▁boxes . ▁ ▁Log o ▁and ▁identity ▁history ▁The ▁first ▁S BS ▁logo ▁was ▁a ▁gradient ed ▁blue ▁and ▁white ▁glo be ▁surrounded ▁by ▁a ▁gradient ed ▁blue ▁and ▁white ▁ring . ▁The ▁logo ▁was ▁used ▁across ▁all ▁of ▁S BS ' s ▁radio ▁and ▁television ▁stations , ▁and ▁symbol ised ▁transmission ▁on ▁V H F ▁channel ▁ 0 . ▁On ▁ 1 4 ▁October ▁ 1 9 8 3 , ▁Channel ▁ 0 / 2 8 ▁was ▁renamed ▁Network ▁ 0 – 2 8 , ▁coinc iding ▁with ▁a ▁new ▁logo ▁featuring ▁the ▁new ▁name ▁under ne ath ▁the ▁glo be .