It was also used for extended coverage of events shown on the main S4C service, such as the National Eisteddfod of Wales and Royal Welsh Show.

When the UK government was planning digital terrestrial television in the late 1990s, each of the existing analogue broadcasters were allocated half a multiplex of capacity each.

It formed part of the Freeview service and cable throughout Wales, but was available throughout the United Kingdom on Freesat and Sky.

[4] S4C2 was also used for interactive programming and alternate programming that couldn't be aired on the main S4C channel, such as uninterrupted coverage of competitions from the National Eisteddfod of Wales, the Urdd National Eisteddfod, the Royal Welsh Show and Goreuon Can i Gymru's sing-along feature (Best of Song for Wales, a yearly Welsh music competition).

[6] S4C cited budget cuts from the Department for Culture, Media and Sport (DCMS) as the reason for closing the service.