All Available Season All Season Season 1 Apr, 2020 11 episodes 0.0 Season 2 Sep, 2020 18 episodes 0.0 Your favourite Hidden London experts are back for another season of Hidden London Hangouts, uncovering London transport's best kept secrets and more. Season 3 Jan, 2021 30 episodes 0.0 Season 4 Aug, 2021 18 episodes 0.0 Season 5 Feb, 2022 21 episodes 0.0 Season 6 Oct, 2022 10 episodes 0.0 Season 7 Mar, 2023 12 episodes 0.0 The team are back for season seven! Season 8 Oct, 2023 8 episodes 0.0 Series 9 Jun, 2024 8 episodes 0.0