The series , which consists of eight episodes , began on 25 February 2014 .
The series , which consists of eight episodes , was broadcast each week - night from Tuesday to Friday on BBC Two at 7pm , over a two - week period .
The series , which consists of eight episodes , began on 25 February 2014 and was broadcast each week - night from Tuesday to Friday on BBC Two at 7pm , over a two - week period .