▁June ▁ 1 4 , ▁ 1 9 5 0 , ▁D Z BB ▁AM ▁radio ▁station ▁began ▁broadcast ing ▁from ▁a ▁makes h ift ▁studio ▁on ▁the ▁ 4 th ▁floor ▁of ▁Cal vo ▁B ld g ▁in ▁Es col ta , ▁which ▁was ▁then ▁the ▁business ▁district ▁of ▁Man ila . ▁ ▁In ▁ 1 9 5 5 , ▁the ▁company ▁launched ▁D Z XX , ▁another ▁AM ▁radio ▁station ▁devoted ▁to ▁music , ▁the ▁first ▁pop ▁music ▁station ▁in ▁the ▁country . ▁ ▁After ▁ 1 0 ▁years ▁on ▁the ▁radio , ▁Stewart ▁decided ▁to ▁expand ▁into ▁television ▁despite ▁limited ▁knowledge ▁about ▁the ▁new ▁tele communic ation ▁medium . ▁ ▁But ▁with ▁vision ▁in ▁mind , ▁on ▁October ▁ 2 9 , ▁ 1 9 6 1 , ▁R BS ▁TV ▁Channel ▁ 7 ▁began ▁broadcast ing ▁on ▁a ▁sur plus ▁transmit ter ▁and ▁two ▁cam eras , ▁thus ▁becoming ▁the ▁third ▁TV ▁network ▁in ▁the ▁Philippines . ▁ ▁On ▁October ▁ 3 0 , ▁ 1 9 6 1 , ▁Stewart ▁appeared ▁on ▁camera ▁as ▁the ▁news ▁anchor ▁for ▁The ▁News ▁with ▁Uncle ▁Bob . ▁ ▁During ▁the ▁first ▁five ▁years , ▁the ▁studio ▁was ▁bare ly ▁surv iving ▁but ▁a ▁friend ▁in ▁the ▁United ▁States ▁gave ▁Stewart ▁a ▁good ▁deal ▁on ▁American ▁synd ic ated ▁TV ▁shows ▁which ▁defined ▁the ▁station ' s ▁programming ▁in ▁the ▁ 1 9 6 0 s . ▁Television ▁shows ▁like ▁Com bat !, ▁The ▁F lying ▁N un , ▁Gill igan '