High definition broadcasts have image resolution that is superior to SD pictures television broadcast.

Freeview Terrestrial signals are currently compatible for receivers displaying HD at :

• 1920 active pixels x 1080 lines @ 50Hz interlaced
• 1440 active pixels x 1080 lines @ 50Hz interlaced
• 1280 active pixels x 720 lines @ 50Hz progressive

Less than the last of these will not be able to display HD from a Freeview transmission.

Note: Freeview satellite signals are SD only and there are no current intentions to change these to HD

The benefits of HD pictures at the highest resolution are particularly noticeable on larger screen sets and when using projection equipment.

UHD is not yet available as a transmission signal and will only occur when demand is high enough for this. It is possible that this may occur with Sky satellite transmissions in the future but unlikely for terrestrial signals.

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