The latest round of Freeview upgrades will see millions of viewers across the North East and the Midlands of England and the Isle of Wight get four new HD channels.
BBC HD channels including BBC Four HD, CBeebies HD and BBC News HD plus Al Jazeera English HD will be available to roughly six million new viewers by the end of March.
Homes receiving Freeview signals from the Bilsdale and Rowridge transmitters in North Yorkshire and on the Isle of Wight should already be receiving the new channels. Viewers connected to the Hannington transmitter will be able to get the new channels from March 18 onwards.
From March 25 onwards, viewers who receive digital terrestrial TV signals from the Pontop Pike and Waltham main transmitters should be able to tune in to BBC Four HD and the rest.
These transmitters cover Tyne and Wear, County Durham, Tees Valley, parts of Northumberland and North Yorkshire and the East Midlands respectively.
This will see the four new channels available to roughly six million more viewers, according to Freeview strategy managers Digital UK.
The new HD channels were only available to 50 per cent of Freeview and YouView homes after launching in December 2013. The current plan will see 70 per cent of digital terrestrial homes able to get BBC Four HD, CBeebies HD and BBC News HD by the time Wimbledon 2014 kicks off.
While all Freeview HD boxes automatically scan for new channels, you might need to retune your set-top box or TV to get these new stations. Read our guide on retuning your Freeview box for more information.