I know the broad strokes, but the rest comes out in the writing bsky.app/profile/prdc...
Yes! I have weird half-hallucinatory memories of watching them on broadcast tv as a kid. bsky.app/profile/prdc...
After university I took a temporary job at the Royal Mail to cover "autumn pressure" and ended up working on the post for ten years. One memorable Christmas I spent working the PRDC Mail Rail Terminal just north of Euston, loading and unloading mail trains & mingling with the rockers at the Ace Cafe