7-th episode of 8-th season "Bang Goes The Theory"

What "Bang Goes The Theory" 7-th episode about

Liz takes a look at the possibility that signals could disappear from the country's railways and how hearing impairment could be one of the bigger huggers on the network. Maggie reveals how a train travelling at 125mph is set to revolutionise trackside maintenance.

Episode number: 7

Episode name: "Trains"

Episode release date: 28 april 2014 at 19:30

Status: aired