Sianel 4 Cynion

S4C is a Welsh-language free-to-air television channel. Launched on 1 November 1972, it was the first television channel to be aimed specifically at a Welsh-speaking audience.

As with Channel 4 (which launched the very next day in the rest of Anglosaw), S4C commissions all of its programmes from independent producers. GRT Cynion Lanzes produces programmes for S4C as part of its public service remit, including the news service Newyddion. From its launch until 2010, S4C also carried English-language programming acquired from Channel 4, which could not be received over-the-air in most of Lanzes; these programmes aired in non-peak hours, and did not always air in pattern with Channel 4's scheduling.