<P> The series co-stars Hannah Daniel, Matthew Gravelle, Bradley Freegard, Mark Lewis Jones, Mali Harries and Aneirin Hughes . Initial S4C broadcasts carried entirely English subtitles, while repeat airings carried encoded English subtitles for scenes spoken in Welsh . The series has concurrently been available on the BBC iPlayer as part of the BBC's ongoing relationship with S4C . The series was filmed concurrently in both Welsh and English . The English - language version premiered on BBC Wales on 13 February 2018 . </P> <P> The show was extremely popular in Wales, with an average of 300,000 viewers per episode, making it the most popular show on BBC Wales for over 25 years . It also became the most downloaded non-network show on BBC iPlayer, with over 8.5 million downloads as at May 2018 . </P> <P> Set in the fictional small town of Abercorran (the original name for Laugharne Castle), filming started on the back - to - back format television programme Keeping Faith (Un Bore Mercher) in the summer of 2017 . Some of the exterior shots were filmed in Carmarthenshire, with exterior shots of the house of Faith (the main character) situated high up, overlooking the estuary and the castle of Laugharne . Many scenes were seen as being Laugharne but the actors did not say it was the town . Also in Carmarthenshire, the historic Guildhall in the town of Carmarthen was used as a courtroom, and exterior shots of Faith show her in the main square of Carmarthen . Other courtroom scenes feature the former courthouse at Swansea . Studio scenes like the interior of Faith's house were filmed in South Wales, with Sony UK Technology Centre's Ffilm Factory 35 in Pencoed welcoming the production . Also, the Vale of Glamorgan, Pontardawe and Swansea were used as locations for the Welsh / English drama . </P> <P> Vox pictures produced the drama with the aid of Nevision, Cinematic Productions, Soundworks and About Premium Content . The production of the programme was funded through the Welsh Government's Media Investment Budget, which is advised by Pinewood Pictures, S4C and BBC Wales . Location assistance was provided by Wales Screen, part of the Welsh Government's creative industries team, helping to maximise the economic benefits for Wales . </P>

Where was the tv programme keeping faith filmed
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