The nucleus of ABS-CBN Corporation began in 1946 with Bolinao Electronics Corporation (BEC). BEC was established by James Lindenberg, one of the founding fathers of Philippine television, an American electronics engineer who went into radio equipment assembly and radio broadcasting. At that time, the largest media company was Manila Broadcasting, with DZRH as the leading radio station. In 1949, James Lindenberg shifted Bolinao to radio broadcasting with DZBC and masterminded the introduction of television to the country in 1953. In June 13, 1946 The BEC logo used from June 13, 1946-October 22, 1953.