TV viewers with Freeview boxes are being reminded to retune their boxes next month.
Digital UK is making important changes to its local signals served by the transmitter at Sandy Heath on May 9.
This includes people living in Northamptonshire.
The changes will take place shortly after midnight and should be completed by 6am.
A spokesman for Digital UK said: “All Freeview, BT Vision and Top Up TV boxes, as well as digital TVs, should be retuned at any point after this. About 900,000 viewers receiving commercial Freeview channels from the Sandy Heath transmitter are affected.
“They will need to retune in order to regain access to a range of channels, including ITV3 and E4. Those watching just satellite or cable are not affected. The changes are necessary to move channels to their final frequencies, following switchover in the neighbouring London region. The Sandy Heath changes will allow thousands of viewers to receive some extra channels.”
On-screen messages are already being transmitted to people who have Freeview boxes and most Freeview viewers in the county will be familiar with retuning, having done so during the digital switchover which finished in April 2011.
Detailed advice is available from Digital UK’s website at digitaluk.co.uk/retuning or from the telephone advice line on 08456 50 50 50.
How to retune your Freeview, Top-Up TV or BT Vision equipment:
Make sure your Freeview TV or box is on and in digital mode. Press ‘menu’ on your remote control.
Select ‘set up’ or ‘installation’. If you see picture icons, select the tool box, satellite dish or spanner.
If you are prompted for a code, try 0000 or 1234.
Select the full re-tune option. This is sometimes called ‘first time installation’, ‘factory reset’, ‘default settings’ or ‘shipping conditions’. Do not select ‘channel update’ or ‘add channels’.
Press ‘OK’ if your equipment asks if you want to delete all your channels, don’t worry this is normal.
Channels will automatically be installed. This may take a few minutes and your equipment may shut
down and restart.