TG4 was originally only available in Northern Ireland via 'overspill' of the terrestrial signal from the Republic of Ireland. In the 1998 Belfast Agreement there was provision for TG4 (then TnaG) to be made available in Northern Ireland, along with increased recognition of the Irish language. Similarly, while TG4, along with the Republic of Ireland's other terrestrial channels, are carried on Sky Ireland there, it was not available to Sky subscribers in Northern Ireland until 18 April 2005 or on Virgin Media NI until February 2007.