In April 1963, Media Securities, owned by Rupert Murdoch, acquired a controlling interest in the station (his second television station after NWS-9 Adelaide) and soon appointed a new general manager, Bill Lean. Both TCN-9 and ATN-7 began purchasing several hours of first-run American television programming from WIN-4, following contractual arrangements signed by Murdoch. Throughout this period WIN-4 expanded its repeater transmissions to include Moruya, Batemans Bay, Narooma, Bega and Eden. Local programming and the station's near-monopoly in the area meant that by 1973, viewership had increased to occupy 63 percent of the audience.