The clearance of Freeview terrestrial TV frequencies has resumed, in order to make way for 5G mobile phone signals. YouView users (inlcuding BT TV, Plusnet TV, and Talk Talk TV) are also affected, as these sevices incorporate Freeview services.
Viewers in North East Wales, North West England, and the Creetown, Gosforth and St Bees areas of the ITV Border region will need to retune on the 12th August (2020). Viewers in the Isle of Man and Kendal area will need to retune on 19th August.
In general, viewers receiving TV from a main transmitter (eg. those who recieve channels such as Dave and Quest) will need to retune from 6am. Viewers who receive a relay service (ie. only BBC, and the main ITV, Channel 4 and Channel 5 channels), will need to wait until early afternoon before attempting a retune.
In some areas, only some of the relays are affected, although short interruptions may still occur.
The exact method for retuning will vary depending on the device, although as the frequencies are changing, a first time installation, or full scan may be required. Consult the instruction manual or manufacturer for information on how to do this.
If you use a Freeview recorder or YouView device with recording capabilities, it is worth noting down what programmes are set to record, as some devices may reset series links (although previously recorded programmes are safe).
Normally, I would list the full details of the transmitters affected, but I don’t currently have this information.