Secrets of the London Underground

S4 E10 ∙ Old Street ∙

Tim Dunn and Siddy Holloway explore the unusual station at Old Street, which serves both the Northern line and mainline trains.

Series Selector for Secrets of the London Underground

All episodes for series 4 of Secrets of the London Underground

S4 E6 · Ruislip Depot

Tim Dunn and Siddy Holloway explore the maintenance depot at the end of the Central Line.

S4 E8 · Stockwell

Tim Dunn and Siddy Holloway explore Stockwell station on the Victoria Line.