S4C - Sianel Pedwar Cymru (Channel Four Wales) - began broadcasting on 1st November 1982, a day ahead of Channel 4 Television in the rest of the UK. Originally a dual-language channel, since the switch to digital-only transmission in Wales, S4C now shows solely Welsh-language programming.
Its current branding went to air on 18th January 2007 with a new stylised word-mark 'S4/C' and idents that represent the magnetism of Welsh society with objects coming together.The design studio was London-based Proud Creative.
'Calon Cenedl - Heart of the Nation' - S4C's on-screen campaign to showcase programming from the heart of Welsh communities. These beautifully animated idents (here - the short version) are from Summer 2011.