Freeview viewers urged to retune TV or box
Freeview viewers in the Channel Islands are being urged to retune their systems by Wednesday or risk losing services.
People using the free to air television system have been shown on screen messages warning them of changes to the airwaves.
The change is being made so 4G mobile broadband can be launched in the islands in 2013.
ITV2 and ITV3 will also be made available in the islands for the first time as part of the change.
The changes do not affect Freesat or Sky viewers.
Between now and the end of 2013, similar changes will also be made at transmitters across the UK to prepare for 4G services.
Viewers across the Channel Islands will need to retune if they find they are missing channels from 15:00 GMT on 29 February.
David Scott, Chief Executive of Digital UK, said: "These changes pave the way for a host of exciting new products and services for viewers in the Channel Islands.
"Retuning typically takes just a few minutes but anyone who needs help with this can call our advice line or visit our website."
Detailed advice on retuning is available from Digital UK's website or its advice line by calling 08456 50 50 50.