The Government's Market Transformation Programme (MTP) has analysed the performances of over 630 televisions sold in 2004, 2005 and 2006 and has concluded that the difference in energy consumption between analogue and integrated digital televisions (IDTVs) is negligible.
The annual consumption of a television varies significantly with screen size and television type, and defining what constitutes a 'typical' television is difficult. However, for a 32 inch widescreen cathode-ray television, MTP estimates that the annual consumption will be 292 kWh, and 310 kWh for a LCD screen of the same size. A 42 inch (a typical size for this technology) plasma TV will consume 746 kWh per year.
However, digital transmission is more efficient than analogue in terms of power usage. Replacing the analogue terrestrial transmission network with a nationwide digital terrestrial television network will lead to a significant net reduction in energy usage by transmission networks, estimated to be 186 GWh per year.