3 in 1 is three programmes rolled into one.
It's a Retrovision, a Fade-Away and a Survivors for the Class 31.
The story begins in 1969, the year the re-engining of the Brush Type 2s was completed.
We follow the progress of the fleet right through to 2008 by way of fascinating footage, a selection of graphics and an informative script.
And much more for your viewing pleasure.
The DVD includes motion menus, scene selection and our commentary off button. Written and Narrated by David Maxey.
Bonus Feature: A speeded-up ride behind D5519 from Peterborough to Firsby circa 1969.
Produced by - Visions International
Running time - 84 Minutes
Format - 4:3
Released - 2008