Travis, Mystery Jets, The Feeling and Gavin James played live at Virgin Radio’s triumphant relaunch on March 30 last year. Nothing unusual about that you might think - except that it took place on board a moving train.

“The Virgin corporate guys said, If there’s anything you need from us, just ask,” chuckles programme director Liam Thompson, speaking at the station’s Hatfield Studios base. “When I said, Can we have a train? They laughed, but I was like, No, really, ...