Hopefully you anre referring to original UK version from 2013? It is one of the best shows I have ever seen. I watched the trailer for the Amazon one and didn’t even want to see it. The 2013 version is insanely good. Both seasons are free on YouTube. https://www.youtube.com/playlist?list=PL_jIDr2tZiuRHlp-bLwYNgWaFAp6dR7_Y