IN ESK, all free-to-air TV channels except the ABC will change frequencies today.

Residents who receive their TV signal from the Esk tower will need to retune after 3.30pm today.

Other residents who receive their TV signal from the Darling Downs transmitter retuned earlier this year.

Residents who receive their TV signal from the Nanango tower will retune on July 22, Yarraman on July 24, Crows Nest on July 30, Miles on August 4 and Tara on August 5.

Toowoomba and surrounds will also retune on August 12.

Some viewers in Top Camp, Withcott, Helidon Spa, Kearney Springs and Hodgson Vale may need to retune on August 14.

These moves will free up broadcasting spectrum so it can be used for new services such as mobile broadband. Once the channels have moved, viewers will need to retune their digital TV, set-top box or digital TV recorder to get them back.

Retuning is done using the remote. For most systems, viewers should press the 'menu' button on the remote, look for settings such as 'channels' or 'auto-tuning', then follow the prompts to retune. 

The federal Department of Communications said viewers might want to write down their favourite channel, program recordings or parental lock settings before they retune.

There may also be outages to TV services over the next two days. Viewers will not need to retune again - the TV services will reappear once the work at the transmission site has been completed.

Viewers can find information about how to retune and any scheduled retune outages on the website below or by calling the Digital Ready Information Line.

Viewers who are having difficulty retuning their equipment should check their manufacturer's handbook or manual for instructions on how to retune, ask a friend or family member to help, visit the retune website or call the Digital Ready Information Line on 1800 20 10 13, 8am to 10pm (AEST), 7 days.