sentences:  The initial purpose was to inform ethnic communities about proposed changes in the healthcare system via the Medibank scheme.During 1977, programming and language coverage expanded to 119 hours per week in 33 languages on 2EA and 103 hours per week in 22 languages on 3EA.In November 1977, the Broadcasting and Television Act 1942 was amended to form the Special Broadcasting Service, which commenced operation and assumed responsibility for 2EA and 3EA on 1 January 1978.