Secrets of the London Underground - Season 4 - Eps 7: Northumberland Park and Finsbury Park
Tim and Siddy get access to the maintenance depot at Northumberland Park, responsible for looking after the entire fleet of Victoria Line trains. Tim meets the team checking all the carriages, and sees the incredible precision needed to finely shave the metal wheels to keep them running smoothly on the tracks. Siddy checks the vintage control panel on the tower and finds it is still in working order. They ride on the private service that links the depot with Seven Sisters station alighting at its mysterious third platform. At Finsbury Park station on the Victoria and Piccadilly lines, Siddy does a night-time track walk to access the now-disused tunnel which was part of an early experiment to run large electric mainline trains on the tube. At our Museum Tim hears about the importance of design across the tube network, and looks at the bespoke designs for seating fabric across different underground lines.
About Secrets of the London Underground

Title: Secrets of the London Underground
First Air Date: 2021-07-19
Last Air Date: 2024-09-03
Status: Returning Series
Rating: 7.4/10 (from 5 votes)
Language: EN
Seasons: 4
Total Episodes: 36
Network: U&Yesterday
Genres: Documentary
Production Companies: Brown Bob Productions
Synopsis
Railway historian Tim Dunn and Siddy Holloway from the London Transport Museum explore hidden areas of the London Underground that—despite being just feet away from where millions of people regularly travel—hardly anyone knows about. The pair will explore abandoned tunnels, secret bunkers and hidden staircases that have been concealed from public view for years.
Cast

Tim Dunn
Self - Presenter

Sigurbjörg Alma Ingólfsdóttir
Self - Presenter