Digital TV Group

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Industry Digital TV, technology, television, standards
Founded 1995
Headquarters London, United Kingdom
Key people
  • David Docherty (Chairman)
  • Richard Lindsay-Davies (Director-General)
  • Simon Gauntlett (Technology Director)
  • Richard Carlton (Associate Director of DTG Testing)


The DTG publish and maintain the D-Book which is used by Freeview, Freeview HD, Freesat and YouView – accounting for over 80% of UK TV households. It also actively encourages and supports the development of Sky, Virgin Media, BT TV, TalkTalk, Connect-TV and VuTV.


The DTG[1] is the members association for Digital Television in the United Kingdom : The Group was formed in 1995 by the BBC, BSkyB, BT Group, Channel 4, ITV (TV network) NTL Incorporated, Pace and Sony to set technical standards for the implementation of digital terrestrial television in the UK (known as the D-book).

The DTG's members are companies and organisations involved in digital television.[2]

Current work[edit]

The DTG is currently supporting the next-generation of digital TV and related technologies through its work in the following areas:

  • The deliver of video to mobile devices
  • Television on tablets
  • Spectrum coexistence management
  • TV white space
  • Home networking and smart metering
  • UK Ultra HD Forum
  • Accessibility


The DTG is a members association with four categories of membership:[3]

  1. Full Member for organisations who are active in the UK market.
  2. New Entrant for new organisations in their first two years of operation.
  3. World Member for organisations who are interested in, but not active, in the UK market.
  4. Affiliate Member for charities, governments and regulators with an interest in the UK market and/or technical aspects of the television industry.

DTG Testing[edit]

The DTG operates a test centre DTG [4] which ensures manufacturer’s product [5] conform to the D-Book specification – allowing them to use the Freeview logos.

DTG Testing also offers access to:

  • The UK’s over-air download channel [6]
  • It's receiver collection (The Zoo [7]) representing 95% of the UK's deployed free-to-air receivers
  • The Wireless Test and Innovation Centre [8]
  • Consultancy [9]
  • Training [10]

The D-Book[edit]

The Group published the seventh edition of the D-book in March 2011; the detailed interoperability specification for digital terrestrial television with extended Connected TV functionality. D-Book 7 provides the baseline specification that YouView, Sky, Virgin Media and others can build on for trademark requirements to support their services.


External links[edit]