TG4 was formerly known as or TnaG, before a rebranding campaign in 1999. TG4 was the third national station to be launched in Ireland, after RTÉ One in 1961 (as ) and RTÉ Two in 1978. It was followed by a fourth channel, TV3 (now called Virgin Media One), in 1998. The channel has 650,000 viewers who tune into the channel each day to view a broad programming policy. It has been reported to have a share of 2% of the national television market in the Republic of Ireland and 3% of the national television market in Northern Ireland. The daily Irish-language programme schedule is its core service: seven hours of programming in Irish supported by a wide range of material in other languages, mostly English.