AN English-language version of a Welsh detective series hits our screens tonight.
Hinterland, the Aberystwyth series which found unprecedented success on S4C with its Welsh language version, will be aired on BBC One Wales at 9.30pm.
Featuring dialogue in both English and Welsh for the first time in a BBC drama, the series is set against a stunning West Wales backdrop.
Adrian Davies, BBC Wales’ head of English language programmes and services described the show as powerful and moving.
Speaking about the ares where it's set, he said; "It’s an area where daily conversation can often dip from Welsh to English and back again – and Hinterland captures this very naturally."
The new series follows a commitment made by BBC Cymru Wales Director Rhodri Talfan Davies at the Celtic Media Festival in April to better reflect Welsh language life and culture on BBC One Wales and BBC Two Wales.
The series of four original stories, each in two hour-long episodes follows decorated, if troubled, detective DCI Tom Mathias, played by Richard Harrington.
S4C audience figures for the Welsh language version showed a quarter of viewers form outside Wales tuned in.
Executive producer Ed Thomas said: "As Y Gwyll, the series received an enthusiastic response from critics and members of the audience alike.
"In Hinterland, Mathias is not a Welsh-speaker, but most of the other characters we encounter do speak the language.
"The dialogue therefore reflects the natural way people adapt their language use to suit the situation they find themselves in."
Let us know what you think of the drama, by tweeting us @SWEveningPost.