What we do

DTG logo

Our mission

Through world-class collaboration, bring audio-visual innovation to life.

The DTG is the non-profit UK collaboration centre for innovation in digital media technology, set up in 1995 with the purpose of looking after the digital TV marketplace. It underpins the free-to-air platforms Freeview, Freesat and YouView, and supports the development of pay-TV and other platforms.

It has been central to the distribution of TV in the UK for two decades and is currently embracing the convergence of content and networks to focus on the efficient delivery of video to all screens in all formats.

The DTG is currently supporting the next generation of video delivery technologies through its work in the delivery of video to mobile devices, spectrum coexistence management, home networking, connected TV, accessibility, and UHD.

Who we are

DTG Council

DTG Executive Team

What we've accomplished


The D-Book

We publish and maintain the technical specifications for Freeview, the most popular platform in the UK, known as the D-Book.


Digital Switchover

The DTG was instrumental in the UK's move to digital TV, with the D-Book specifications and test regimes underpinning the switchover certification mark (the digital tick)


High Definition

The D-Book 6 represented a landmark in UK broadcasting, providing the specification for the launch of HD services on Freeview, powered by the DVB-T2 modulation standard.


Interoperability and co-existence

We run DTG Testing, the ISO17025 accredited digital TV test centre which provides benchmark test and conformance services for the Freeview and Freesat services and international platforms.

Future programmes

We're bringing industry together to understand new technologies and create new opportunities, in six main workstreams

  • Ultra HD and the DTG UK UHD Forum
  • DTT maintaining the technical specifications D-Book
  • Mobile improving delivery and interoperability of video to mobile devices
  • Spectrum driving full value from spectrum while ensuring coexistence
  • Connected TV leading the search for an industry-wide solution for Ad Insertion and improving Home Networking
  • Accessibility improving the TV experience for accessibility users

If your organisation is particularly interested in any of this work and would like to discuss getting involved with the DTG, please contact membership@dtg.org.uk or call us on 020 7840 6500.