Camden (Season 3 Episode 1): Tim Dunn and Siddy Holloway head to London's iconic Camden Town station. Secrets of the London Underground airs on Yesterday at 7:00 PM, Monday 6 May. Tim Dunn and Siddy Holloway head to London's iconic Camden Town station
Baker Street (Season 2 Episode 10 of 10): Tim Dunn and Siddy Holloway explore the tube station with the most platforms, Baker Street. Secrets of the London Underground airs on Yesterday at 7:00 PM, Friday 3 May. Tim Dunn and Siddy Holloway explore the tube station with the most platforms, Baker Street
Greenwich Power Station (Season 2 Episode 9 of 10): Tim Dunn and Siddy Holloway visit the cathedral-like Greenwich Power Station. Secrets of the London Underground airs on Yesterday at 7:00 PM, Thursday 2 May. Tim Dunn and Siddy Holloway visit the cathedral-like Greenwich Power Station
Elizabeth Line (Season 2 Episode 7 of 10): Tim Dunn and Siddy Holloway explore the brand new Elizabeth Line. Secrets of the London Underground airs on Yesterday at 7:00 PM, Tuesday 30 April. Tim Dunn and Siddy Holloway explore the brand new Elizabeth Line
North End (Season 1 Episode 2 of 6): Tim Dunn and Siddy Holloway visit North End under Hampstead Heath. Secrets of the London Underground airs on Yesterday at 8:00 PM, Friday 26 April. Tim Dunn and Siddy Holloway visit North End under Hampstead Heath