THE BUGGLES, “VIDEO KILLED THE RADIO STAR” (prod. by group) (writers: Horne-Downes-Woolley) (Ackee, ASCAP/Carbert, BMI) (3:20). Rock & disco merge via studio electronics to create catchy pop sounds for the ‘80s. Already #1 in England, it’s a cinch hit here. Island 49114 (WB).