tuning into Steeltown Murders have pointed out a mistake contained in an episode of the show.
The four-part miniseries is of the ‘Saturday Night Strangler’ in Port Talbot in South Wales in 1973.
Over the course of three months, three teenage girls were strangled and Ki**ed, leading to a hunt across the country for the culprit.
The first documented case of a serial killer in Wales, the crimes were three decades later thanks to advancements in DNA technology.
The series tells this story over the time that it took for the cases to be solved, jumping between 1973 and 2002.
However eagle-eyed fans couldn’t help but pick up an out-of-place detail when watching.
Using CGI to show a train passing along the railway line behind one of the streets in the Welsh coastal town, trainspotters pointed out the train that was shown hadn’t actually been in existence in 1973.
The large logo featured on the engine meant the train featured was a British Rail Class 56, not introduced until 1976.
One viewer shared the mistake on social media.
‘BBC at it again! Who cares if the trains are right in historical dramas? A large logo 56 in 1973 in Steeltown Murders and the double arrow is back to front!’ they posted.
‘The arrow was the right way round later when the (CGI) train was going the other way. #getthetrainsright..’ they added.
‘And thats the second time we’ve seen a Class 56 in Large Logo in South Wales in 1973. Its beginning to grate…,’ someone else said.
Another added: ‘Steeltown Murders was good, but the wrong logo on the train completely ruined it for me and I will never watch the BBC again.’
One other fan simply said: ‘A Class 56? With wraparound yellow ends? In 1973?’
Philip Glenister (Life On Mars, State Of Play) and Steffan Rhodri (In My Skin, Gavin & Stacey) star in the series as DCI Paul Bethell and Phil ‘Bach’ Rees, with their younger selves played by Scott Arthur (Good Omens, Borg McEnroe) and Siôn Alun Davies (The Sandman, Hidden).
The synopsis for the first episode explained: ‘As the CID reopen an investigation into three murders from 1973, DCI Paul Bethell tries to piece together a past that has haunted both him and a community for almost 30 years.’
It added that ‘as new advances in DNA technology provide the possibility of answers, Paul reflects on his time as a junior officer, when he became convinced that the murderer of a teenager would soon strike again’.
Metro.co.uk has contacted BBC for comment.
Steeltown Murders is streaming on BBC iPlayer.
