The Digital Television Group (DTG) has announced the release of D-Book 12.9, the latest version of the UK’s universally-deployed technical standard for digital television. Developed in collaboration with industry, D-Book 12.9 introduces critical updates that reflect the fast-changing landscape of the TV market.
Key updates in D-Book 12.9:
- LCN allocation guidance, expanding the number of available slots for IP services, enabling the next generation of on-demand and linear services.
- SCTE-35 signalling, allowing dynamic content insertion into linear transport streams, offering broadcasters new commercial and operational flexibility.
- Enhanced HEVC broadcast signalling, which improves video compression and reduces bitrates, paving the way for higher quality viewing experiences.
- An updated Interoperability Manual annexe to incorporate the latest Freeview Play and Freely TMLs.
- Guidance added on obtaining D-Book Conformance for UK DTT/Hybrid devices and TV Operating Systems.
Co-created with industry and universally deployed, the D-Book underpins the technology foundation that supports the UK’s television ecosystem and continues to be the bedrock of interoperability for UK television. As the industry navigates continuous innovation, the D-Book remains a critical enabler of seamless experiences, delivering economic growth and ensuring UK viewers continue to access unparalleled services across digital TV platforms.
DTG CEO Richard Lindsay-Davies said: “D-Book 12.9 empowers a diverse range of platforms to thrive in an increasingly connected world. It reinforces industry’s commitment to ensuring that viewers across the UK can access innovative and reliable television services however it is delivered, including forming the foundation of IP innovations such as Freely. The D-Book remains a testament to our industry’s ability to collaborate and innovate, delivering economic growth while preserving the high-quality experiences that audiences expect.”