Royal decree defines HDTV

The government has approved new legislation for the DTT platform which both defines HDTV and removes the previous limitation that broadcasters could only transmit two DTT services in each multiplex. Instead, the capacity of each multiplex will be shared allowing broadcasters to increase the number of services provided.
In future broadcasters will be required to inform viewers when a programme is shown in high-definition. HDTV is defined as programmes with at least 720 active lines in a 16:9 format at the time of production. This is to avoid the quality confusion of viewers who have already been fed up-scaled SDTV labelled as HDTV.
Main source: Rapid TV News
Item added: 21st February 2011