FREEVIEW viewers in the south-west Highlands and Islands may need to retune their TV equipment on October 4 to continue watching programmes.
Some Freeview channels are moving to new airwaves to allow for the future development of new mobile broadband services.
Following a decision by Ofcom, the media regulator, transmitters across the UK are being updated region by region as part of a major engineering programme being carried out between now and 2020.