All Seasons

Season 1

  • S01E01 Bank Card

    • November 10, 2022
    • BBC Two

    Hannah Fry takes a look at the bank card, the digital key to accessing cash, and finds out how its extraordinary innovations have some surprising and sinister origins.

  • S01E02 Food Delivery App

    • November 17, 2022
    • BBC Two

    Hannah Fry tucks into the tech behind food delivery apps, which are now used by 24 million people in the UK. Hannah finds out how pizza made us fall in love with the internet.

  • S01E03 Virtual Assistant

    • November 24, 2022
    • BBC Two

    Hannah Fry delves into the inner workings of virtual assistants, such as Amazon’s Alexa, Google Assistant and Siri, which are now found in almost half of all UK homes.

  • S01E04 Electric Car

    • December 1, 2022
    • BBC Two

    Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk’s electric empire, as well as demonstrating how not to drive a multimillion dollar prototype car of the future.

  • S01E05 Fitness Tracker

    • December 8, 2022
    • BBC Two

    Hannah Fry finds out how 1970s car crashes helped us to count our steps, why WWII dog-fights led to a crucial health monitor and how fitness trackers are even being used to catch killers.

  • S01E06 Trainer

    • December 15, 2022
    • BBC Two

    Hannah Fry visits eBay’s authentication centre, where they are waging war against fake high-value trainers. She discovers how American breakfast waffles transformed our trainer soles and how an 18th-century tea set led to the use of celebrity endorsement.

Season 2

  • S02E01 Passport

    • November 8, 2023
    • BBC Two

    Hannah gains access to a top-secret site where anonymous staff and the latest tech work to make the British passport one of the most secure documents on the planet.

  • S02E02 Vacuum Cleaner

    • November 22, 2023
    • BBC Two

    Hannah takes a look at the vacuum cleaner, going behind the scenes with Dyson and discovering how the motor in their latest vacuum spins nine times faster than that of a Formula One race car.

  • S02E03 Smartphone

    • November 29, 2023
    • BBC Two

    With rare access to electronics giant Samsung, Hannah uncovers the technological game-changers that have made the smartphone a reality.

  • S02E04 Microwave

    • December 6, 2023
    • BBC Two

    Hannah Fry discovers the hidden WWII radar technology that heats up baked beans, learns the legend of the melted candy bar in an engineer’s pocket that kick-started a kitchen revolution, and puts her life on the line to demonstrate why microwaves zap food but not people!

  • S02E05 Headphones

    • December 7, 2023
    • BBC Two

    Headphones: these marvels of miniaturisation are worn by 30 million people in the UK. Hannah Fry visits Bose to find out how the teeny earbud tech works and meets the human testers with ‘golden ears’.

  • S02E06 Lift

    • December 14, 2023
    • BBC Two

    Hannah goes behind the scenes to look at the technology behind the lift, entering a 246m high lift shaft to test everything from the brakes to her own fear of heights.