But if you're outside of Wales, and want access to the channel, perhaps because of its sports coverage (which is sometimes offered with an English language soundtrack), here's how....
Via traditional digital TV platforms
- Sky UK - channel 134
- Freesat - channel 120
- Virgin Media - channel 166
- Satellite manual tuning (e.g. for viewers in the Republic of Ireland or mainland Europe): Astra 2F 11344 V, Symbol Rate 27500 (27.5 Mbaud) FEC: 5/6
Via the internet/smart TVs
You can also stream S4C to your mobile or tablet via the iPlayer or TVPlayer Apps. Geoblocked to the UK.
What if I use Freeview?
S4C is only available on Freeview if you receive the service from a Welsh transmitter. Signals from terrestrial TV transmitters are limited in range so that if your rooftop aerial isn't line-of-sight or near line-of-sight to a Welsh transmitter, then you won't be able to receive it via Freeview.
The welsh signal overlaps in to parts of England: if you are west of Manchester, you may be able to receive the channel from the Moel-Y-Parc transmitter in North East Wales. Viewers in parts of the Bristol and Somerset area may be able to receive S4C from the Wenvoe transmitter overlooking the Bristol Channel. You should contact a local aerial specialist to see if it is possible.
Information last reviewed: 19/01/2016