DVD B&R 191: Diesel Electric Heyday Part 1DVD B&R 191: Diesel Electric Heyday Part 1 19. 75 This is the first volume in a series featuring the diesel electric locomotives of British Rail. Here we mostly cover the low powered Types 1 & 2 . Many scenes are from the early days with locomotives in their original green liveries ; others show the changes into BR Corporate Blue. We start with glimpses of English Electric Type 4s, Deltics (including some rare footage of the blue prototype on action