switching it off when you're not using it, will help save energy. Standby modes still use electricity but allow equipment to receive any necessary updates or perform scheduled functions like recording. To watch digital TV you don't need to buy a new television but you may need some new equipment. If you've got the equipment you need, you may not have installed it properly. Check your installation guide and contact the manufacturer or retailer. Research shows that most New Zealanders are satisfied with the services they receive from television installers. Like any service though, it pays to ask about the experience and qualifications of any company you contact. Consumers are protected under the Consumer Guarantees Act and the Fair Trading Act. If you believe an organisation has broken the Fair Trading Act, you can contact the Commerce Commission , which enforces the Act. The frequencies on which Freeview HD channels are broadcast will change in most areas and this will generally occur well before each region goes digital.  Viewers will need to begin the automatic retuning process in their Freeview HD set-top box or televisions on the day of the change in their area.  There will be householder publicity and on-screen messages at the appropriate time in each area. Viewers who use only Sky, TelstraClear, or Freeview satellite services do not need to make any changes. Freeview is the digital replacement for free to air analogue television.  Freeview HD broadcasts using UHF frequencies and allows viewers to watch some programmes