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The Traitors on TV4 – The DOOH Lie Detector

A large digital display and synchronized digital banners in a modern, multi-story shopping center show advertisements for the TV4 program “Förrädarna.” The campaign material features the text “New season, let the game begin” displayed across glass balcony railings, illustrating a large-scale DOOH installation in a public setting.
Täby centrum, Stockholm
Interactive digital out-of-home (DOOH) advertising in the form of a lie detector for the TV4 show *Förrädarna*. A custom solution by the company Quality Think. A visitor taps a touchscreen that displays the question: 'DO YOU HAVE A TIGER AS A PET?'.

Are you good at lying?

When TV4 was set to launch its major new project The Traitors , they wanted to bring the show’s atmosphere to life in the real world. We were therefore tasked with transforming traditional DOOH into an interactive experience. By creating innovative digital out-of-home advertising, we literally drew passersby into the game—via a lie detector in the middle of Westfield Täby Centrum, where visitors could challenge each other and test their skills live.

A close-up of a hand with biometric sensors and cables attached to two fingers. The image shows Quality Think’s unique IoT solution for the TV4 program *Förrädarna*, where the technology measures the participants’ stress responses in real time.

Technology meets drama

Behind the scenes of this unique experience was a carefully synchronized technical DOOH solution. We developed the software from the ground up and integrated smart IoT sensors to create a reliable solution tailored for a public environment with high foot traffic. By using biometric sensors that detect participants’ physical responses in real time, we were able to provide immediate feedback directly on the screen.

This type of interactive installation demonstrates how the boundaries of modern outdoor advertising can be pushed when creativity, smart technology, and human interaction come together.

A large digital display and synchronized digital banners in a modern, multi-story shopping center show advertisements for the TV4 program “Förrädarna.” The campaign material features the text “New season, let the game begin” displayed across glass balcony railings, illustrating a large-scale DOOH installation in a public setting.

A Hit with the Audience on Site

The activation at the shopping center quickly became a lively gathering place filled with excitement and laughter. Visitors stopped by to test their own skills or watch as their friends were challenged by the screen. By bringing the TV show’s iconic atmosphere directly into the public space, the organizers succeeded in creating a dynamic activation that engaged hundreds of passersby every day. The campaign was a perfect demonstration of how well the underlying technology and the physical installation worked together in a real-world setting, and it shows how a strong TV concept can be brought to life on the street when you dare to do more than just traditional advertising.

A big thank you to Ocean Outdoor Sweden for a fantastic and fun collaboration!

Project Details

Location
Westfield Täby Center
Collaboration with
TV4 and Ocean Outdoor Sweden
Industry
AdTech →
Our role
Technical Partner, Hardware and Software Development
Stack
Raspberry Pi, Biometric Sensors, Laravel, React

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