Secrets of the London Underground

Épisode 1 - Holborn

19 juillet 2021

Tim Dunn and Siddy Holloway explore the abandoned branch line between Holborn and Aldwych. And at Holloway Road they find out about the Tube's only spiral escalator.

Épisode 2 - North End

26 juillet 2021

Tim Dunn and Siddy Holloway visit North End under Hampstead Heath. Abandoned before completion, the station became a Cold War bunker.

Épisode 3 - Piccadilly Circus

2 août 2021

tim and Siddy explore the disused parts of Piccadilly Circus. Widely regarded as being at the heart of the capital, this station has always been the flagship of the London Underground. It’s grand, it’s opulent, it’s art deco. But it wasn’t always this big. A major expansion in the 1930s involved extraordinary feats of engineering to ensure the tube continued running and the traffic on the busy road junction above wasn’t disrupted.

Épisode 4 - Euston and York Road

9 août 2021

Tim and Siddy explore the hidden parts of Euston underground station - and there’s a lot to see, including some features not found anywhere else on the London Underground. The tunnels were abandoned in the 1960s and this place is a time capsule of that period, with brightly coloured posters stuck to the walls. Euston is an excellent example of how the network has adapted over time.

Épisode 5 - St Mary's, Aldgate East and Oxford Circus

16 août 2021

Tim Dunn and Siddy Holloway have a night-time adventure as they go on a late-night exploration of two of London’s least known stations: St Mary’s and the original Aldgate East, they’re only a few hundred metres apart but trains haven’t stopped at either since 1938. There’s nothing on the surface to suggest the stations exist so the only people who know about them are tube maintenance workers. St Mary’s is spooky, with fallen staircases and the intricately designed footbridges hidden high up in the tops of the running tunnel

Épisode 6 - Clapham South and Moorgate

23 août 2021

Tim and Siddy are deep beneath Clapham Common; in fact, they’re so deep, the Northern line is running above their heads. This is Clapham South deep level shelter, an enormous, purpose-built air raid shelter. During the Second World War, as rockets landed on the streets above, thousands of people could sleep down here in more than a mile of tunnels - all built by London Transport in the same way they dug tube tunnels.

Épisode 1 - Charing Cross

5 mai 2022

Tim Dunn and Siddy Holloway explore the disused Jubilee line areas of Charing Cross station, now more famous as a film location.

Épisode 2 - Waterloo & City

12 mai 2022

Tim Dunn and Siddy Holloway discover the hidden world of the Waterloo and City, the only line entirely underground.

Épisode 3 - King William Street and Knightsbridge

19 mai 2022

Tim and Siddy visit King William Street, the earliest disused station on the deep tube. Siddy also sees new life breathed into Knightsbridge’s long-abandoned lifts.

Épisode 4 - Brompton Road and St Pauls

26 mai 2022

Tim and Siddy walk the Piccadilly line at night to explore the hidden World War 2 remains of Brompton Road. Siddy reveals the unexpected wartime use for St Pauls.

Épisode 5 - London Bridge and Ongar

2 juin 2022

Tim and Siddy explore the disused parts of London Bridge. Siddy visits Ongar in Essex, and nearby Blake Hall which, at the end, served less than 20 passengers a day.

Épisode 6 - King’s Cross and Marlborough Road

9 juin 2022

Tim and Siddy explore Kings Cross St Pancras, including a secret siding and the disused Thameslink station. Siddy also discovers long lost Marlborough Road station.

Épisode 7 - Elizabeth Line and Angel

16 juin 2022

Tim and Siddy explore the brand new Elizabeth Line – and have access to 2 of its stations weeks before the line opens. Siddy also explores the disused parts of Angel.

Épisode 8 - Quainton Road and Kingsway

23 juin 2022

Tim and Siddy visit Quainton Road in rural Buckinghamshire, 50 miles from central London – and once on the underground. Siddy also explores Kingsway tramway tunnel.

Épisode 9 - Greenwich and Notting Hill

30 juin 2022

Tim and Siddy visit the cathedral-like Greenwich Power Station, which stands ready to power the tube at short notice. Siddy visits hidden parts of Notting Hill Gate.

Épisode 10 - Baker Street and Edgware Road

7 juillet 2022

Tim and Siddy explore the tube station with the most platforms, Baker Street. Siddy visits the disused Edgware Road Signal Cabin with its very last operator.

Épisode 1 - Camden

4 juillet 2023

Tim Dunn and Siddy Holloway explore the labyrinthine Camden Town station, and the forgotten wartime shelter built beneath. Plus, Siddy visits a station which hides a lost river.

Épisode 2 - South Kensington and Marylebone

11 juillet 2023

Tim Dunn and Siddy Holloway explore the disused areas of South Kensington station, with platforms reclaimed by nature and wartime uses. Siddy also heads to Marylebone to reveal the original features on the platforms and the tube infrastructure hidden within the walls of a hotel.

Épisode 3 - Green Park (Dover Street) and Down Street

18 juillet 2023

Tim and Siddy are heading to a station you won’t find on modern-day tube maps – Dover Street, now known as Green Park. During the Second World War the abandoned passageways and lift shafts of the original station had an incredible second life as the base for the London Passenger Transport Board whose work kept London’s transport moving against all odds. Next, Siddy delves into the abandoned corridors and platforms of Down Street, closed to the public in 1932, and the scene of some of the most pivotal decisions of World War II.

Épisode 4 - British Museum and Leinster Gardens

25 juillet 2023

Tim and Siddy embark on a night-time track walk to the abandoned station of British Museum. The pair discover 1930s hand-painted adverts and white tiling. During the second world war it served as a shelter and spine-tingling clues to the children who stayed there during The Blitz can still be seen. Siddy also visits the houses of Leinster Gardens.

Épisode 5 - West Ashfield & Oval

1 août 2023

Tube fans would be right in thinking there are 272 Underground stations, but Siddy Holloway has such unique access, she is taking Tim Dunn to the 273rd - West Ashfield.

Épisode 6 - Leicester Square

8 août 2023

Épisode 7 - Heathrow

15 août 2023

Tim Dunn and Siddy Holloway head to the sprawling Heathrow Airport underground stations - the first ever underground rail link between an airport and a city.

Épisode 8 - Shepherd's Bush

22 août 2023

Tim Dunn and Siddy Holloway discover the hidden corners of Shepherd's Bush.

Épisode 9 - Acton Works

29 août 2023

Tim Dunn and Siddy Holloway snoop around TFL's gargantuan maintenance facility - Acton Works.

Épisode 10 - Archway

5 septembre 2023

Tim Dunn and Siddy Holloway explore hidden parts of Archway. Once called Highgate to encourage more people to travel there before an actual Highgate station existed.