The channels are being broadcast on "COM7", a new multiplex of HD channels.
The extra HD channels, which include BBC Four HD become available in parts of Tayside, served by the Angus transmitter, parts of Newcastle/Gateshead served by the Fenham transmitter and Torbay served by the Beacon Hill transmitter. The Darvel transmitter serving the Kilmarnock area officially goes live, but live broadcasts ahead of the official go-live date have been reported.
The extra HD channels will appear on channels 74 and 106-109. Additionally, the Arabic version of Al Jazeera will become available on channel 84.
The channels are available to viewers with Freeview HD devices (and YouView boxes) who can already receive the full range of Freeview channels including BBC One HD on channel 101.
Freeview HD users will need to retune to get the extra channels. Details about retuning and channel availablity can be obtained from Digital UK's postcode coverage checker. The extra channels are not available from relay transmitters.
Viewers who want to manually tune the extra multiplex of channels can find the service on the following UHF channel numbers:
- Angus: UHF channel 31 (554 MHz)
- Beacon Hill (Torbay): UHF channel 33 (570 MHz)
- Darvel: UHF channel 31 (554 MHz)
- Fenham (Tyneside): UHF channel 31 (554 MHz)
End of current roll-out
The switch-on concludes the roll-out which began late November in locations including London, Manchester and Hull. Since then, coverage has gradually been built out to around 70% of UK households.
There are currently no plans to extend coverage further. There are currently proposals to change the frequencies used by Freeview later this decade, as more frequencies are handed over to mobile network operators. A consultation on the proposals is currently underway.
Another Freeview HD multiplex covering the same area has been given the green light. There is currently no news on if/when COM8 will launch.