Digital Terrestrial Television (DTT) refers to the broadcast of digital television services using terrestrial radio transmission. At present, free-to-air television programmes are broadcast by radio transmission in digital format from 29 DTT stations covering the whole territory of Hong Kong. The DTT signals received by users via aerials are decoded and then converted into images and sound for viewing on TV sets.

DTT offers an improved picture quality and relatively free from problems like ghosting and interference. It also supports new features and services such as high definition TV (HDTV) programmes, interactive services and mobile reception, wide-screen pictures, surround sound audios, multiple viewing angles, multi-channeling, closed-captioning as well as electronic programme guides.

Government's Digital TV Website